./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-bwb/not-01.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-bwb/not-01.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --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 3dfbe8f5341b447680f0727714aef9849c6c8cbf32af0f88458cc80db5d02e27 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 06:59:10,666 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 06:59:10,723 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2025-01-10 06:59:10,728 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 06:59:10,728 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 06:59:10,748 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 06:59:10,749 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 06:59:10,749 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 06:59:10,750 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 06:59:10,750 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 06:59:10,751 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 06:59:10,751 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 06:59:10,751 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 06:59:10,751 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-01-10 06:59:10,751 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-01-10 06:59:10,751 INFO L153 SettingsManager]: * Use old map elimination=false [2025-01-10 06:59:10,752 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-01-10 06:59:10,752 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-01-10 06:59:10,752 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-01-10 06:59:10,752 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 06:59:10,752 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-01-10 06:59:10,752 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 06:59:10,752 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 06:59:10,752 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-01-10 06:59:10,752 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-01-10 06:59:10,752 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-01-10 06:59:10,752 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 06:59:10,752 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-10 06:59:10,753 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-01-10 06:59:10,753 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 06:59:10,753 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 06:59:10,753 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 06:59:10,753 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 06:59:10,753 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 06:59:10,753 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 06:59:10,754 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-01-10 06:59:10,754 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness 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 -> 3dfbe8f5341b447680f0727714aef9849c6c8cbf32af0f88458cc80db5d02e27 [2025-01-10 06:59:11,001 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 06:59:11,020 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 06:59:11,023 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 06:59:11,024 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 06:59:11,024 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 06:59:11,025 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-bwb/not-01.c [2025-01-10 06:59:12,435 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/908f445d8/451f02625a5b441f8b5d1eeecc80a89f/FLAG2710fbb44 [2025-01-10 06:59:12,668 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 06:59:12,670 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/termination-bwb/not-01.c [2025-01-10 06:59:12,676 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/908f445d8/451f02625a5b441f8b5d1eeecc80a89f/FLAG2710fbb44 [2025-01-10 06:59:12,693 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/908f445d8/451f02625a5b441f8b5d1eeecc80a89f [2025-01-10 06:59:12,695 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 06:59:12,696 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 06:59:12,697 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 06:59:12,697 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 06:59:12,702 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 06:59:12,703 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:59:12" (1/1) ... [2025-01-10 06:59:12,704 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c56f7da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:59:12, skipping insertion in model container [2025-01-10 06:59:12,704 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:59:12" (1/1) ... [2025-01-10 06:59:12,714 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 06:59:12,821 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 06:59:12,828 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 06:59:12,836 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 06:59:12,843 INFO L204 MainTranslator]: Completed translation [2025-01-10 06:59:12,844 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:59:12 WrapperNode [2025-01-10 06:59:12,844 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 06:59:12,845 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 06:59:12,845 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 06:59:12,845 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 06:59:12,849 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:59:12" (1/1) ... [2025-01-10 06:59:12,851 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:59:12" (1/1) ... [2025-01-10 06:59:12,859 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 15 [2025-01-10 06:59:12,859 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 06:59:12,859 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 06:59:12,859 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 06:59:12,859 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 06:59:12,864 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:59:12" (1/1) ... [2025-01-10 06:59:12,864 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:59:12" (1/1) ... [2025-01-10 06:59:12,865 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:59:12" (1/1) ... [2025-01-10 06:59:12,867 INFO L175 MemorySlicer]: No memory access in input program. [2025-01-10 06:59:12,868 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:59:12" (1/1) ... [2025-01-10 06:59:12,868 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:59:12" (1/1) ... [2025-01-10 06:59:12,868 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:59:12" (1/1) ... [2025-01-10 06:59:12,869 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:59:12" (1/1) ... [2025-01-10 06:59:12,871 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:59:12" (1/1) ... [2025-01-10 06:59:12,871 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:59:12" (1/1) ... [2025-01-10 06:59:12,871 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:59:12" (1/1) ... [2025-01-10 06:59:12,872 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 06:59:12,872 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 06:59:12,872 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 06:59:12,872 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 06:59:12,873 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:59:12" (1/1) ... [2025-01-10 06:59:12,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 06:59:12,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:59:12,894 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 06:59:12,896 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-01-10 06:59:12,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 06:59:12,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 06:59:12,942 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 06:59:12,944 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 06:59:12,977 INFO L? ?]: Removed 3 outVars from TransFormulas that were not future-live. [2025-01-10 06:59:12,977 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 06:59:12,982 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 06:59:12,982 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-10 06:59:12,982 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:59:12 BoogieIcfgContainer [2025-01-10 06:59:12,982 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 06:59:12,983 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-01-10 06:59:12,983 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-01-10 06:59:12,987 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-01-10 06:59:12,987 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-01-10 06:59:12,987 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.01 06:59:12" (1/3) ... [2025-01-10 06:59:12,988 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@67db7e0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.01 06:59:12, skipping insertion in model container [2025-01-10 06:59:12,988 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-01-10 06:59:12,988 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:59:12" (2/3) ... [2025-01-10 06:59:12,988 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@67db7e0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.01 06:59:12, skipping insertion in model container [2025-01-10 06:59:12,988 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-01-10 06:59:12,988 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:59:12" (3/3) ... [2025-01-10 06:59:12,989 INFO L363 chiAutomizerObserver]: Analyzing ICFG not-01.c [2025-01-10 06:59:13,019 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-01-10 06:59:13,019 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-01-10 06:59:13,019 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-01-10 06:59:13,019 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-01-10 06:59:13,019 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-01-10 06:59:13,019 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-01-10 06:59:13,019 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-01-10 06:59:13,019 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-01-10 06:59:13,023 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 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) [2025-01-10 06:59:13,033 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2025-01-10 06:59:13,033 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-01-10 06:59:13,033 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-01-10 06:59:13,036 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-01-10 06:59:13,036 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-01-10 06:59:13,036 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-01-10 06:59:13,036 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 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) [2025-01-10 06:59:13,037 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2025-01-10 06:59:13,037 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-01-10 06:59:13,037 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-01-10 06:59:13,037 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-01-10 06:59:13,037 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-01-10 06:59:13,041 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~a~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" [2025-01-10 06:59:13,042 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~x~0#1 > 0;main_~a~0#1 := -1 - main_~a~0#1;" "assume main_~a~0#1 > 0;main_~x~0#1 := main_~x~0#1 - main_~a~0#1;" [2025-01-10 06:59:13,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:59:13,045 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2025-01-10 06:59:13,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:59:13,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260532419] [2025-01-10 06:59:13,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:59:13,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:59:13,091 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-01-10 06:59:13,093 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-01-10 06:59:13,093 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:59:13,093 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 06:59:13,094 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 06:59:13,095 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-01-10 06:59:13,096 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-01-10 06:59:13,096 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:59:13,096 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 06:59:13,105 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 06:59:13,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:59:13,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1156, now seen corresponding path program 1 times [2025-01-10 06:59:13,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:59:13,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983173476] [2025-01-10 06:59:13,107 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:59:13,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:59:13,110 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-01-10 06:59:13,116 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-01-10 06:59:13,116 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:59:13,116 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 06:59:13,116 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 06:59:13,118 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-01-10 06:59:13,119 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-01-10 06:59:13,119 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:59:13,119 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 06:59:13,120 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 06:59:13,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:59:13,121 INFO L85 PathProgramCache]: Analyzing trace with hash 925638, now seen corresponding path program 1 times [2025-01-10 06:59:13,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:59:13,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008001733] [2025-01-10 06:59:13,121 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:59:13,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:59:13,124 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-01-10 06:59:13,126 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-01-10 06:59:13,126 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:59:13,126 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 06:59:13,126 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 06:59:13,127 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-01-10 06:59:13,128 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-01-10 06:59:13,128 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:59:13,129 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 06:59:13,129 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 06:59:13,213 INFO L204 LassoAnalysis]: Preferences: [2025-01-10 06:59:13,214 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-01-10 06:59:13,214 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-01-10 06:59:13,214 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-01-10 06:59:13,214 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-01-10 06:59:13,215 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 06:59:13,215 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-01-10 06:59:13,215 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-01-10 06:59:13,215 INFO L132 ssoRankerPreferences]: Filename of dumped script: not-01.c_Iteration1_Loop [2025-01-10 06:59:13,215 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-01-10 06:59:13,216 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-01-10 06:59:13,224 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 06:59:13,291 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-01-10 06:59:13,291 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-01-10 06:59:13,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 06:59:13,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:59:13,294 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 06:59:13,298 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2025-01-10 06:59:13,299 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-01-10 06:59:13,299 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-01-10 06:59:13,318 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2025-01-10 06:59:13,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 06:59:13,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:59:13,322 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 06:59:13,324 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2025-01-10 06:59:13,325 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-01-10 06:59:13,325 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-01-10 06:59:13,369 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-01-10 06:59:13,377 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2025-01-10 06:59:13,377 INFO L204 LassoAnalysis]: Preferences: [2025-01-10 06:59:13,377 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-01-10 06:59:13,377 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-01-10 06:59:13,377 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-01-10 06:59:13,377 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-01-10 06:59:13,377 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 06:59:13,377 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-01-10 06:59:13,377 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-01-10 06:59:13,377 INFO L132 ssoRankerPreferences]: Filename of dumped script: not-01.c_Iteration1_Loop [2025-01-10 06:59:13,377 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-01-10 06:59:13,377 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-01-10 06:59:13,378 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 06:59:13,412 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-01-10 06:59:13,414 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-01-10 06:59:13,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 06:59:13,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:59:13,421 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 06:59:13,426 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2025-01-10 06:59:13,426 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 [2025-01-10 06:59:13,438 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-01-10 06:59:13,438 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-01-10 06:59:13,439 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-01-10 06:59:13,440 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-01-10 06:59:13,440 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-01-10 06:59:13,444 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-01-10 06:59:13,444 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-01-10 06:59:13,447 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-01-10 06:59:13,451 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2025-01-10 06:59:13,453 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-01-10 06:59:13,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 06:59:13,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:59:13,459 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 06:59:13,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2025-01-10 06:59:13,463 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-01-10 06:59:13,463 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-01-10 06:59:13,464 INFO L474 LassoAnalysis]: Proved termination. [2025-01-10 06:59:13,464 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2025-01-10 06:59:13,472 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2025-01-10 06:59:13,474 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-01-10 06:59:13,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:59:13,511 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-01-10 06:59:13,511 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-01-10 06:59:13,511 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:59:13,511 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:59:13,515 WARN L254 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-10 06:59:13,516 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:59:13,529 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-01-10 06:59:13,531 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-01-10 06:59:13,531 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:59:13,531 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:59:13,532 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-10 06:59:13,532 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:59:13,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:59:13,576 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 [2025-01-10 06:59:13,577 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 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) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2025-01-10 06:59:13,617 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 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). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 13 states and 18 transitions. Complement of second has 7 states. [2025-01-10 06:59:13,625 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 [2025-01-10 06:59:13,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2025-01-10 06:59:13,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2025-01-10 06:59:13,644 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 2 letters. Loop has 2 letters. [2025-01-10 06:59:13,646 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-01-10 06:59:13,647 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 4 letters. Loop has 2 letters. [2025-01-10 06:59:13,649 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-01-10 06:59:13,649 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 2 letters. Loop has 4 letters. [2025-01-10 06:59:13,650 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-01-10 06:59:13,650 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 18 transitions. [2025-01-10 06:59:13,651 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2025-01-10 06:59:13,654 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 9 states and 12 transitions. [2025-01-10 06:59:13,656 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2025-01-10 06:59:13,657 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2025-01-10 06:59:13,658 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2025-01-10 06:59:13,658 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-01-10 06:59:13,658 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2025-01-10 06:59:13,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2025-01-10 06:59:13,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2025-01-10 06:59:13,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 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) [2025-01-10 06:59:13,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2025-01-10 06:59:13,691 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2025-01-10 06:59:13,691 INFO L432 stractBuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2025-01-10 06:59:13,691 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-01-10 06:59:13,691 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2025-01-10 06:59:13,692 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2025-01-10 06:59:13,692 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-01-10 06:59:13,692 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-01-10 06:59:13,693 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-01-10 06:59:13,693 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-01-10 06:59:13,693 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~a~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume main_~x~0#1 > 0;main_~a~0#1 := -1 - main_~a~0#1;" [2025-01-10 06:59:13,693 INFO L754 eck$LassoCheckResult]: Loop: "assume !(main_~a~0#1 > 0);main_~x~0#1 := main_~x~0#1 + main_~a~0#1;" "assume main_~x~0#1 > 0;main_~a~0#1 := -1 - main_~a~0#1;" [2025-01-10 06:59:13,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:59:13,695 INFO L85 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 1 times [2025-01-10 06:59:13,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:59:13,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254845346] [2025-01-10 06:59:13,696 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:59:13,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:59:13,701 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-01-10 06:59:13,703 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-01-10 06:59:13,703 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:59:13,703 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 06:59:13,703 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 06:59:13,705 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-01-10 06:59:13,706 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-01-10 06:59:13,710 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:59:13,710 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 06:59:13,711 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 06:59:13,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:59:13,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1308, now seen corresponding path program 1 times [2025-01-10 06:59:13,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:59:13,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140324001] [2025-01-10 06:59:13,712 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:59:13,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:59:13,715 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-01-10 06:59:13,723 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-01-10 06:59:13,724 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:59:13,724 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 06:59:13,724 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 06:59:13,725 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-01-10 06:59:13,728 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-01-10 06:59:13,729 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:59:13,729 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 06:59:13,730 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 06:59:13,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:59:13,732 INFO L85 PathProgramCache]: Analyzing trace with hash 28694846, now seen corresponding path program 1 times [2025-01-10 06:59:13,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:59:13,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563985855] [2025-01-10 06:59:13,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:59:13,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:59:13,734 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-01-10 06:59:13,740 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-01-10 06:59:13,740 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:59:13,740 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 06:59:13,740 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 06:59:13,744 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-01-10 06:59:13,749 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-01-10 06:59:13,750 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:59:13,750 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 06:59:13,751 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 06:59:13,796 INFO L204 LassoAnalysis]: Preferences: [2025-01-10 06:59:13,796 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-01-10 06:59:13,796 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-01-10 06:59:13,796 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-01-10 06:59:13,796 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-01-10 06:59:13,796 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 06:59:13,796 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-01-10 06:59:13,796 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-01-10 06:59:13,796 INFO L132 ssoRankerPreferences]: Filename of dumped script: not-01.c_Iteration2_Loop [2025-01-10 06:59:13,796 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-01-10 06:59:13,796 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-01-10 06:59:13,797 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 06:59:13,847 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-01-10 06:59:13,847 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-01-10 06:59:13,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 06:59:13,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:59:13,849 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 06:59:13,851 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2025-01-10 06:59:13,852 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-01-10 06:59:13,852 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-01-10 06:59:13,868 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2025-01-10 06:59:13,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 06:59:13,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:59:13,871 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 06:59:13,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2025-01-10 06:59:13,872 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-01-10 06:59:13,872 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-01-10 06:59:13,907 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-01-10 06:59:13,911 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2025-01-10 06:59:13,911 INFO L204 LassoAnalysis]: Preferences: [2025-01-10 06:59:13,911 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-01-10 06:59:13,912 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-01-10 06:59:13,912 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-01-10 06:59:13,912 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-01-10 06:59:13,913 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 06:59:13,913 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-01-10 06:59:13,913 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-01-10 06:59:13,913 INFO L132 ssoRankerPreferences]: Filename of dumped script: not-01.c_Iteration2_Loop [2025-01-10 06:59:13,913 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-01-10 06:59:13,913 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-01-10 06:59:13,914 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 06:59:13,962 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-01-10 06:59:13,963 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-01-10 06:59:13,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 06:59:13,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:59:13,965 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 06:59:13,966 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2025-01-10 06:59:13,968 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 [2025-01-10 06:59:13,978 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-01-10 06:59:13,978 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-01-10 06:59:13,978 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-01-10 06:59:13,978 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-01-10 06:59:13,978 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-01-10 06:59:13,979 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-01-10 06:59:13,979 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-01-10 06:59:13,981 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-01-10 06:59:13,986 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-01-10 06:59:13,986 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-01-10 06:59:13,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 06:59:13,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:59:13,988 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 06:59:13,990 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2025-01-10 06:59:13,991 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-01-10 06:59:13,991 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-01-10 06:59:13,991 INFO L474 LassoAnalysis]: Proved termination. [2025-01-10 06:59:13,991 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~a~0#1) = 2*ULTIMATE.start_main_~x~0#1 + 1*ULTIMATE.start_main_~a~0#1 Supporting invariants [] [2025-01-10 06:59:13,997 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2025-01-10 06:59:13,998 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-01-10 06:59:14,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:59:14,033 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-01-10 06:59:14,036 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-01-10 06:59:14,036 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:59:14,036 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:59:14,036 INFO L256 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-10 06:59:14,037 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:59:14,051 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-01-10 06:59:14,053 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-01-10 06:59:14,053 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:59:14,053 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:59:14,053 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-10 06:59:14,054 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:59:14,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:59:14,116 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 [2025-01-10 06:59:14,117 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5 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) [2025-01-10 06:59:14,150 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5. 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 17 states and 23 transitions. Complement of second has 7 states. [2025-01-10 06:59:14,155 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 [2025-01-10 06:59:14,155 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) [2025-01-10 06:59:14,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2025-01-10 06:59:14,156 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2025-01-10 06:59:14,156 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-01-10 06:59:14,156 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2025-01-10 06:59:14,156 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-01-10 06:59:14,156 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 3 letters. Loop has 4 letters. [2025-01-10 06:59:14,156 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-01-10 06:59:14,156 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 23 transitions. [2025-01-10 06:59:14,157 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2025-01-10 06:59:14,157 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 11 states and 15 transitions. [2025-01-10 06:59:14,157 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2025-01-10 06:59:14,157 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2025-01-10 06:59:14,158 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 15 transitions. [2025-01-10 06:59:14,158 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-01-10 06:59:14,158 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 15 transitions. [2025-01-10 06:59:14,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 15 transitions. [2025-01-10 06:59:14,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 8. [2025-01-10 06:59:14,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.25) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:59:14,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2025-01-10 06:59:14,164 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 10 transitions. [2025-01-10 06:59:14,164 INFO L432 stractBuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2025-01-10 06:59:14,164 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-01-10 06:59:14,164 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2025-01-10 06:59:14,165 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2025-01-10 06:59:14,165 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-01-10 06:59:14,165 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-01-10 06:59:14,165 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2025-01-10 06:59:14,165 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-01-10 06:59:14,165 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~a~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume main_~x~0#1 > 0;main_~a~0#1 := -1 - main_~a~0#1;" "assume main_~a~0#1 > 0;main_~x~0#1 := main_~x~0#1 - main_~a~0#1;" "assume main_~x~0#1 > 0;main_~a~0#1 := -1 - main_~a~0#1;" [2025-01-10 06:59:14,165 INFO L754 eck$LassoCheckResult]: Loop: "assume !(main_~a~0#1 > 0);main_~x~0#1 := main_~x~0#1 + main_~a~0#1;" "assume main_~x~0#1 > 0;main_~a~0#1 := -1 - main_~a~0#1;" [2025-01-10 06:59:14,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:59:14,165 INFO L85 PathProgramCache]: Analyzing trace with hash 28694784, now seen corresponding path program 2 times [2025-01-10 06:59:14,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:59:14,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899037582] [2025-01-10 06:59:14,166 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 06:59:14,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:59:14,173 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 5 statements into 2 equivalence classes. [2025-01-10 06:59:14,177 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 5 of 5 statements. [2025-01-10 06:59:14,177 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 06:59:14,177 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 06:59:14,177 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 06:59:14,178 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-01-10 06:59:14,183 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-01-10 06:59:14,183 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:59:14,183 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 06:59:14,184 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 06:59:14,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:59:14,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1308, now seen corresponding path program 2 times [2025-01-10 06:59:14,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:59:14,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703138636] [2025-01-10 06:59:14,186 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 06:59:14,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:59:14,189 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 2 statements into 1 equivalence classes. [2025-01-10 06:59:14,191 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-01-10 06:59:14,191 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-10 06:59:14,191 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 06:59:14,191 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 06:59:14,191 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-01-10 06:59:14,192 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-01-10 06:59:14,192 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:59:14,192 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 06:59:14,197 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 06:59:14,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:59:14,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1805883995, now seen corresponding path program 1 times [2025-01-10 06:59:14,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:59:14,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601860493] [2025-01-10 06:59:14,198 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:59:14,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:59:14,207 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-01-10 06:59:14,210 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-01-10 06:59:14,217 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:59:14,218 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 06:59:14,218 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 06:59:14,219 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-01-10 06:59:14,221 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-01-10 06:59:14,221 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:59:14,221 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 06:59:14,228 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 06:59:14,284 INFO L204 LassoAnalysis]: Preferences: [2025-01-10 06:59:14,284 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-01-10 06:59:14,284 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-01-10 06:59:14,284 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-01-10 06:59:14,284 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-01-10 06:59:14,284 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 06:59:14,284 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-01-10 06:59:14,284 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-01-10 06:59:14,284 INFO L132 ssoRankerPreferences]: Filename of dumped script: not-01.c_Iteration3_Loop [2025-01-10 06:59:14,284 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-01-10 06:59:14,284 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-01-10 06:59:14,285 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 06:59:14,335 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-01-10 06:59:14,336 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-01-10 06:59:14,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 06:59:14,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:59:14,338 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 06:59:14,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2025-01-10 06:59:14,341 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-01-10 06:59:14,341 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-01-10 06:59:14,361 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2025-01-10 06:59:14,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 06:59:14,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:59:14,366 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 06:59:14,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2025-01-10 06:59:14,368 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-01-10 06:59:14,368 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-01-10 06:59:14,404 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-01-10 06:59:14,408 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2025-01-10 06:59:14,409 INFO L204 LassoAnalysis]: Preferences: [2025-01-10 06:59:14,409 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-01-10 06:59:14,409 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-01-10 06:59:14,409 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-01-10 06:59:14,409 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-01-10 06:59:14,409 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 06:59:14,409 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-01-10 06:59:14,409 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-01-10 06:59:14,409 INFO L132 ssoRankerPreferences]: Filename of dumped script: not-01.c_Iteration3_Loop [2025-01-10 06:59:14,409 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-01-10 06:59:14,409 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-01-10 06:59:14,410 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-01-10 06:59:14,436 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-01-10 06:59:14,437 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-01-10 06:59:14,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 06:59:14,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:59:14,439 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 06:59:14,446 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2025-01-10 06:59:14,446 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 [2025-01-10 06:59:14,456 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-01-10 06:59:14,456 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-01-10 06:59:14,456 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-01-10 06:59:14,457 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-01-10 06:59:14,457 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-01-10 06:59:14,458 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-01-10 06:59:14,458 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-01-10 06:59:14,462 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-01-10 06:59:14,466 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-01-10 06:59:14,466 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-01-10 06:59:14,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-01-10 06:59:14,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:59:14,469 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-01-10 06:59:14,474 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2025-01-10 06:59:14,474 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-01-10 06:59:14,474 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-01-10 06:59:14,474 INFO L474 LassoAnalysis]: Proved termination. [2025-01-10 06:59:14,474 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~a~0#1) = 2*ULTIMATE.start_main_~x~0#1 + 1*ULTIMATE.start_main_~a~0#1 Supporting invariants [] [2025-01-10 06:59:14,480 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2025-01-10 06:59:14,481 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-01-10 06:59:14,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:59:14,519 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2025-01-10 06:59:14,520 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-01-10 06:59:14,522 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-01-10 06:59:14,523 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:59:14,523 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:59:14,523 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-10 06:59:14,523 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:59:14,524 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2025-01-10 06:59:14,527 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2025-01-10 06:59:14,539 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-01-10 06:59:14,544 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-01-10 06:59:14,545 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:59:14,545 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:59:14,545 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-10 06:59:14,545 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:59:14,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:59:14,570 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 [2025-01-10 06:59:14,570 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2025-01-10 06:59:14,601 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) Result 13 states and 17 transitions. Complement of second has 7 states. [2025-01-10 06:59:14,602 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 [2025-01-10 06:59:14,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2025-01-10 06:59:14,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2025-01-10 06:59:14,602 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2025-01-10 06:59:14,603 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-01-10 06:59:14,603 INFO L689 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2025-01-10 06:59:14,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:59:14,626 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-01-10 06:59:14,628 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-01-10 06:59:14,628 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:59:14,628 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:59:14,628 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-10 06:59:14,629 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:59:14,643 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-01-10 06:59:14,644 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-01-10 06:59:14,644 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:59:14,644 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:59:14,644 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-10 06:59:14,645 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:59:14,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:59:14,669 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2025-01-10 06:59:14,669 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2025-01-10 06:59:14,699 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) Result 13 states and 17 transitions. Complement of second has 7 states. [2025-01-10 06:59:14,702 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 [2025-01-10 06:59:14,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2025-01-10 06:59:14,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2025-01-10 06:59:14,704 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2025-01-10 06:59:14,704 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-01-10 06:59:14,704 INFO L689 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2025-01-10 06:59:14,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:59:14,729 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-01-10 06:59:14,731 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-01-10 06:59:14,731 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:59:14,731 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:59:14,731 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-10 06:59:14,732 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:59:14,741 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-01-10 06:59:14,742 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-01-10 06:59:14,743 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:59:14,743 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:59:14,743 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-10 06:59:14,744 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:59:14,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:59:14,757 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-01-10 06:59:14,757 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2025-01-10 06:59:14,774 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) Result 12 states and 15 transitions. Complement of second has 6 states. [2025-01-10 06:59:14,775 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 [2025-01-10 06:59:14,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2025-01-10 06:59:14,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2025-01-10 06:59:14,775 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 5 letters. Loop has 2 letters. [2025-01-10 06:59:14,776 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-01-10 06:59:14,779 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 7 letters. Loop has 2 letters. [2025-01-10 06:59:14,780 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-01-10 06:59:14,780 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 5 letters. Loop has 4 letters. [2025-01-10 06:59:14,780 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-01-10 06:59:14,780 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 15 transitions. [2025-01-10 06:59:14,781 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-01-10 06:59:14,781 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 0 states and 0 transitions. [2025-01-10 06:59:14,781 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-01-10 06:59:14,781 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-01-10 06:59:14,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-01-10 06:59:14,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-01-10 06:59:14,781 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-01-10 06:59:14,781 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-01-10 06:59:14,781 INFO L432 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-01-10 06:59:14,781 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-01-10 06:59:14,781 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-01-10 06:59:14,781 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-01-10 06:59:14,781 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-01-10 06:59:14,795 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.01 06:59:14 BoogieIcfgContainer [2025-01-10 06:59:14,795 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-01-10 06:59:14,796 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-10 06:59:14,796 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-10 06:59:14,796 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-10 06:59:14,797 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:59:12" (3/4) ... [2025-01-10 06:59:14,798 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-01-10 06:59:14,801 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-10 06:59:14,802 INFO L158 Benchmark]: Toolchain (without parser) took 2105.91ms. Allocated memory is still 167.8MB. Free memory was 134.4MB in the beginning and 115.0MB in the end (delta: 19.4MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. [2025-01-10 06:59:14,803 INFO L158 Benchmark]: CDTParser took 0.71ms. Allocated memory is still 192.9MB. Free memory is still 117.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 06:59:14,803 INFO L158 Benchmark]: CACSL2BoogieTranslator took 147.53ms. Allocated memory is still 167.8MB. Free memory was 134.4MB in the beginning and 124.5MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 06:59:14,803 INFO L158 Benchmark]: Boogie Procedure Inliner took 14.14ms. Allocated memory is still 167.8MB. Free memory was 124.5MB in the beginning and 123.7MB in the end (delta: 718.8kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 06:59:14,803 INFO L158 Benchmark]: Boogie Preprocessor took 12.46ms. Allocated memory is still 167.8MB. Free memory was 123.4MB in the beginning and 122.6MB in the end (delta: 764.2kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 06:59:14,803 INFO L158 Benchmark]: RCFGBuilder took 110.12ms. Allocated memory is still 167.8MB. Free memory was 122.6MB in the beginning and 114.0MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 06:59:14,804 INFO L158 Benchmark]: BuchiAutomizer took 1812.58ms. Allocated memory is still 167.8MB. Free memory was 114.0MB in the beginning and 115.0MB in the end (delta: -1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 06:59:14,804 INFO L158 Benchmark]: Witness Printer took 5.60ms. Allocated memory is still 167.8MB. Free memory was 115.0MB in the beginning and 115.0MB in the end (delta: 33.1kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 06:59:14,805 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.71ms. Allocated memory is still 192.9MB. Free memory is still 117.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 147.53ms. Allocated memory is still 167.8MB. Free memory was 134.4MB in the beginning and 124.5MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 14.14ms. Allocated memory is still 167.8MB. Free memory was 124.5MB in the beginning and 123.7MB in the end (delta: 718.8kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 12.46ms. Allocated memory is still 167.8MB. Free memory was 123.4MB in the beginning and 122.6MB in the end (delta: 764.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 110.12ms. Allocated memory is still 167.8MB. Free memory was 122.6MB in the beginning and 114.0MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1812.58ms. Allocated memory is still 167.8MB. Free memory was 114.0MB in the beginning and 115.0MB in the end (delta: -1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.60ms. Allocated memory is still 167.8MB. Free memory was 115.0MB in the beginning and 115.0MB in the end (delta: 33.1kB). 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 3 terminating modules (0 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function (((long) 2 * x) + a) and consists of 4 locations. One nondeterministic module has affine ranking function (((long) 2 * x) + a) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.7s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 4 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 [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 42 IncrementalHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 16 mSDtfsCounter, 42 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq168 hnf93 smp100 dnf100 smp100 tf106 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 48ms VariablesStem: 0 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-01-10 06:59:14,818 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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