./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/recursive/EvenOdd03.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/recursive/EvenOdd03.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash eda92234de2991558d0fa68c10405194bf8879d4d71f81bbe5c79bf2cf318fe2 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 16:17:40,495 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 16:17:40,550 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2025-03-04 16:17:40,555 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 16:17:40,555 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 16:17:40,555 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-03-04 16:17:40,570 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 16:17:40,571 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 16:17:40,571 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 16:17:40,571 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 16:17:40,571 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 16:17:40,571 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 16:17:40,571 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 16:17:40,571 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 16:17:40,572 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-03-04 16:17:40,572 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-03-04 16:17:40,572 INFO L153 SettingsManager]: * Use old map elimination=false [2025-03-04 16:17:40,572 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-03-04 16:17:40,572 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-03-04 16:17:40,572 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-03-04 16:17:40,572 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 16:17:40,572 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-03-04 16:17:40,572 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 16:17:40,572 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 16:17:40,572 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 16:17:40,572 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 16:17:40,572 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-03-04 16:17:40,572 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-03-04 16:17:40,572 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-03-04 16:17:40,572 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 16:17:40,573 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 16:17:40,573 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 16:17:40,573 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-03-04 16:17:40,573 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 16:17:40,573 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 16:17:40,573 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 16:17:40,573 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 16:17:40,573 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 16:17:40,573 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 16:17:40,573 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-03-04 16:17:40,573 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/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eda92234de2991558d0fa68c10405194bf8879d4d71f81bbe5c79bf2cf318fe2 [2025-03-04 16:17:40,770 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 16:17:40,776 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 16:17:40,777 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 16:17:40,778 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 16:17:40,778 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 16:17:40,779 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/EvenOdd03.c [2025-03-04 16:17:41,955 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a85c831b/03d0456d7bab45e7be45e9f4b616b08b/FLAG2c6812e4f [2025-03-04 16:17:42,148 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 16:17:42,148 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/EvenOdd03.c [2025-03-04 16:17:42,164 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a85c831b/03d0456d7bab45e7be45e9f4b616b08b/FLAG2c6812e4f [2025-03-04 16:17:42,516 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a85c831b/03d0456d7bab45e7be45e9f4b616b08b [2025-03-04 16:17:42,518 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 16:17:42,520 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 16:17:42,521 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 16:17:42,521 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 16:17:42,524 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 16:17:42,525 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 04:17:42" (1/1) ... [2025-03-04 16:17:42,527 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75854446 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:17:42, skipping insertion in model container [2025-03-04 16:17:42,527 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 04:17:42" (1/1) ... [2025-03-04 16:17:42,536 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 16:17:42,627 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 16:17:42,636 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 16:17:42,645 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 16:17:42,653 INFO L204 MainTranslator]: Completed translation [2025-03-04 16:17:42,654 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:17:42 WrapperNode [2025-03-04 16:17:42,654 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 16:17:42,654 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 16:17:42,655 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 16:17:42,655 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 16:17:42,658 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:17:42" (1/1) ... [2025-03-04 16:17:42,662 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:17:42" (1/1) ... [2025-03-04 16:17:42,673 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 26 [2025-03-04 16:17:42,673 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 16:17:42,674 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 16:17:42,674 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 16:17:42,674 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 16:17:42,678 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:17:42" (1/1) ... [2025-03-04 16:17:42,679 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:17:42" (1/1) ... [2025-03-04 16:17:42,680 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:17:42" (1/1) ... [2025-03-04 16:17:42,690 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-04 16:17:42,690 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:17:42" (1/1) ... [2025-03-04 16:17:42,691 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:17:42" (1/1) ... [2025-03-04 16:17:42,693 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:17:42" (1/1) ... [2025-03-04 16:17:42,697 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:17:42" (1/1) ... [2025-03-04 16:17:42,698 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:17:42" (1/1) ... [2025-03-04 16:17:42,699 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:17:42" (1/1) ... [2025-03-04 16:17:42,699 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 16:17:42,700 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 16:17:42,700 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 16:17:42,700 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 16:17:42,701 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:17:42" (1/1) ... [2025-03-04 16:17:42,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:17:42,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:17:42,732 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 16:17:42,737 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-03-04 16:17:42,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 16:17:42,754 INFO L130 BoogieDeclarations]: Found specification of procedure isEven [2025-03-04 16:17:42,754 INFO L138 BoogieDeclarations]: Found implementation of procedure isEven [2025-03-04 16:17:42,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 16:17:42,754 INFO L130 BoogieDeclarations]: Found specification of procedure isOdd [2025-03-04 16:17:42,754 INFO L138 BoogieDeclarations]: Found implementation of procedure isOdd [2025-03-04 16:17:42,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 16:17:42,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 16:17:42,793 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 16:17:42,795 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 16:17:42,836 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L34: havoc #t~ret5; [2025-03-04 16:17:42,846 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L24: havoc #t~ret4; [2025-03-04 16:17:42,872 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2025-03-04 16:17:42,872 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 16:17:42,881 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 16:17:42,882 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 16:17:42,882 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 04:17:42 BoogieIcfgContainer [2025-03-04 16:17:42,882 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 16:17:42,883 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-03-04 16:17:42,883 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-03-04 16:17:42,886 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-03-04 16:17:42,887 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 16:17:42,887 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 04.03 04:17:42" (1/3) ... [2025-03-04 16:17:42,888 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@65ac6f92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 04.03 04:17:42, skipping insertion in model container [2025-03-04 16:17:42,888 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 16:17:42,888 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:17:42" (2/3) ... [2025-03-04 16:17:42,888 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@65ac6f92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 04.03 04:17:42, skipping insertion in model container [2025-03-04 16:17:42,888 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-04 16:17:42,888 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 04:17:42" (3/3) ... [2025-03-04 16:17:42,889 INFO L363 chiAutomizerObserver]: Analyzing ICFG EvenOdd03.c [2025-03-04 16:17:42,918 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-03-04 16:17:42,919 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-03-04 16:17:42,919 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-03-04 16:17:42,919 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-03-04 16:17:42,919 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-03-04 16:17:42,919 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-03-04 16:17:42,919 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-03-04 16:17:42,919 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-03-04 16:17:42,922 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 25 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 19 states have internal predecessors, (25), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-04 16:17:42,936 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2025-03-04 16:17:42,937 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:17:42,937 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:17:42,941 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-03-04 16:17:42,941 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:17:42,941 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-03-04 16:17:42,941 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 25 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 19 states have internal predecessors, (25), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-04 16:17:42,943 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2025-03-04 16:17:42,943 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-04 16:17:42,943 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-04 16:17:42,944 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-03-04 16:17:42,944 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 16:17:42,948 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(12, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~ret7#1, main_~n~0#1, main_~result~0#1, main_~mod~0#1;havoc main_#t~nondet6#1;main_~n~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;" "assume !(main_~n~0#1 < 0);" "call main_#t~ret7#1 := isEven(main_~n~0#1);"< [2025-03-04 16:17:42,949 INFO L754 eck$LassoCheckResult]: Loop: "~n := #in~n;" "assume !(0 == ~n);" "assume !(1 == ~n);" "call #t~ret5 := isOdd(~n - 1);"< "~n := #in~n;" "assume !(0 == ~n);" "assume !(1 == ~n);" "call #t~ret4 := isEven(~n - 1);"< [2025-03-04 16:17:42,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:17:42,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1846024, now seen corresponding path program 1 times [2025-03-04 16:17:42,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:17:42,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456107366] [2025-03-04 16:17:42,960 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:17:42,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:17:43,010 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-04 16:17:43,024 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-04 16:17:43,024 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:17:43,024 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:17:43,025 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:17:43,029 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-04 16:17:43,033 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-04 16:17:43,034 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:17:43,034 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:17:43,047 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:17:43,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:17:43,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1289439250, now seen corresponding path program 1 times [2025-03-04 16:17:43,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:17:43,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642627357] [2025-03-04 16:17:43,049 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:17:43,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:17:43,055 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-04 16:17:43,059 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-04 16:17:43,060 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:17:43,061 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:17:43,061 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:17:43,063 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-04 16:17:43,069 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-04 16:17:43,069 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:17:43,069 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:17:43,071 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:17:43,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:17:43,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1673849845, now seen corresponding path program 1 times [2025-03-04 16:17:43,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 16:17:43,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504834447] [2025-03-04 16:17:43,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 16:17:43,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 16:17:43,082 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-04 16:17:43,088 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-04 16:17:43,089 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:17:43,089 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:17:43,089 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 16:17:43,092 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-04 16:17:43,099 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-04 16:17:43,100 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:17:43,100 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 16:17:43,103 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 16:17:43,272 INFO L204 LassoAnalysis]: Preferences: [2025-03-04 16:17:43,273 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-04 16:17:43,273 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-04 16:17:43,273 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-04 16:17:43,273 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-03-04 16:17:43,273 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:17:43,273 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-04 16:17:43,274 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-04 16:17:43,274 INFO L132 ssoRankerPreferences]: Filename of dumped script: EvenOdd03.c_Iteration1_Loop [2025-03-04 16:17:43,274 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-04 16:17:43,274 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-04 16:17:43,284 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:17:43,291 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:17:43,294 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:17:43,296 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:17:43,298 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:17:43,301 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:17:43,392 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-04 16:17:43,392 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-03-04 16:17:43,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:17:43,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:17:43,396 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 16:17:43,397 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2025-03-04 16:17:43,398 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-04 16:17:43,398 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 16:17:43,411 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-04 16:17:43,412 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {isOdd_#in~n=0} Honda state: {isOdd_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-04 16:17:43,417 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2025-03-04 16:17:43,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:17:43,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:17:43,419 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 16:17:43,420 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2025-03-04 16:17:43,422 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-04 16:17:43,422 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 16:17:43,433 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-04 16:17:43,433 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {isOdd_#t~ret4=0} Honda state: {isOdd_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-04 16:17:43,439 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2025-03-04 16:17:43,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:17:43,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:17:43,442 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 16:17:43,442 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2025-03-04 16:17:43,445 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-04 16:17:43,445 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 16:17:43,456 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-04 16:17:43,456 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {isOdd_#res=0} Honda state: {isOdd_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-04 16:17:43,461 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2025-03-04 16:17:43,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:17:43,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:17:43,463 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 16:17:43,463 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2025-03-04 16:17:43,464 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-04 16:17:43,464 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 16:17:43,475 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-04 16:17:43,475 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {isEven_#t~ret5=0} Honda state: {isEven_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-04 16:17:43,480 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2025-03-04 16:17:43,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:17:43,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:17:43,482 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 16:17:43,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2025-03-04 16:17:43,484 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-04 16:17:43,484 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 16:17:43,494 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-04 16:17:43,495 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {isEven_#res=0} Honda state: {isEven_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-03-04 16:17:43,499 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2025-03-04 16:17:43,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:17:43,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:17:43,502 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 16:17:43,502 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2025-03-04 16:17:43,503 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-03-04 16:17:43,503 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 16:17:43,520 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2025-03-04 16:17:43,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:17:43,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:17:43,522 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 16:17:43,522 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2025-03-04 16:17:43,523 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-03-04 16:17:43,523 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-03-04 16:17:43,549 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-03-04 16:17:43,549 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {isEven_#in~n=-1} Honda state: {isEven_#in~n=-1} Generalized eigenvectors: [{isEven_#in~n=-1}, {isEven_#in~n=0}, {isEven_#in~n=-1}] Lambdas: [1, 0, 1] Nus: [1, 0] [2025-03-04 16:17:43,555 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2025-03-04 16:17:43,695 INFO L204 LassoAnalysis]: Preferences: [2025-03-04 16:17:43,695 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-03-04 16:17:43,695 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-03-04 16:17:43,695 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-03-04 16:17:43,695 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-03-04 16:17:43,695 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:17:43,695 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-03-04 16:17:43,695 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-03-04 16:17:43,695 INFO L132 ssoRankerPreferences]: Filename of dumped script: EvenOdd03.c_Iteration1_Lasso [2025-03-04 16:17:43,695 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-03-04 16:17:43,695 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-03-04 16:17:43,697 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:17:43,699 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:17:43,701 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:17:43,702 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:17:43,710 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:17:43,723 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:17:43,725 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:17:43,745 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:17:43,764 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:17:43,766 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:17:43,768 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:17:43,770 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:17:43,772 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:17:43,773 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:17:43,775 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:17:43,777 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-03-04 16:17:43,923 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-03-04 16:17:43,927 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-03-04 16:17:43,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:17:43,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:17:43,930 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 16:17:43,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2025-03-04 16:17:43,933 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 [2025-03-04 16:17:43,944 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 16:17:43,944 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 16:17:43,944 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 16:17:43,944 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 16:17:43,944 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 16:17:43,948 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 16:17:43,948 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 16:17:43,949 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 16:17:43,955 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2025-03-04 16:17:43,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:17:43,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:17:43,957 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 16:17:43,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2025-03-04 16:17:43,959 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 [2025-03-04 16:17:43,969 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 16:17:43,969 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 16:17:43,970 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 16:17:43,970 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 16:17:43,970 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 16:17:43,971 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 16:17:43,971 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 16:17:43,972 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 16:17:43,977 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2025-03-04 16:17:43,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:17:43,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:17:43,979 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 16:17:43,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2025-03-04 16:17:43,990 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 [2025-03-04 16:17:44,000 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 16:17:44,000 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-03-04 16:17:44,000 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 16:17:44,000 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-03-04 16:17:44,001 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 16:17:44,001 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-03-04 16:17:44,001 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-03-04 16:17:44,002 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-03-04 16:17:44,007 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2025-03-04 16:17:44,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:17:44,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:17:44,009 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 16:17:44,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2025-03-04 16:17:44,012 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 [2025-03-04 16:17:44,022 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-03-04 16:17:44,023 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-03-04 16:17:44,023 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2025-03-04 16:17:44,023 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-03-04 16:17:44,029 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2025-03-04 16:17:44,029 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2025-03-04 16:17:44,039 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-03-04 16:17:44,047 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2025-03-04 16:17:44,049 INFO L444 ModelExtractionUtils]: 5 out of 11 variables were initially zero. Simplification set additionally 3 variables to zero. [2025-03-04 16:17:44,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-04 16:17:44,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 16:17:44,052 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-04 16:17:44,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2025-03-04 16:17:44,059 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-03-04 16:17:44,072 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2025-03-04 16:17:44,072 INFO L474 LassoAnalysis]: Proved termination. [2025-03-04 16:17:44,073 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(isEven_#in~n) = 1*isEven_#in~n Supporting invariants [1*isEven_#in~n >= 0] [2025-03-04 16:17:44,081 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2025-03-04 16:17:44,086 INFO L156 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2025-03-04 16:17:44,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 16:17:44,119 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-04 16:17:44,127 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-04 16:17:44,127 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:17:44,127 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 16:17:44,130 INFO L256 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 16:17:44,130 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 16:17:44,153 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-04 16:17:44,163 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-04 16:17:44,163 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 16:17:44,163 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 16:17:44,164 INFO L256 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-03-04 16:17:44,165 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 16:17:44,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 16:17:44,337 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 6 loop predicates [2025-03-04 16:17:44,339 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 25 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 19 states have internal predecessors, (25), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 8 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 16:17:44,538 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 25 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 19 states have internal predecessors, (25), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3). Second operand has 8 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 82 states and 95 transitions. Complement of second has 33 states. [2025-03-04 16:17:44,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 11 states 2 stem states 7 non-accepting loop states 1 accepting loop states [2025-03-04 16:17:44,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 16:17:44,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 38 transitions. [2025-03-04 16:17:44,547 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 38 transitions. Stem has 4 letters. Loop has 8 letters. [2025-03-04 16:17:44,548 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 16:17:44,548 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 38 transitions. Stem has 12 letters. Loop has 8 letters. [2025-03-04 16:17:44,548 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 16:17:44,548 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 38 transitions. Stem has 4 letters. Loop has 16 letters. [2025-03-04 16:17:44,548 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-03-04 16:17:44,549 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 82 states and 95 transitions. [2025-03-04 16:17:44,551 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-03-04 16:17:44,552 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 82 states to 0 states and 0 transitions. [2025-03-04 16:17:44,553 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-03-04 16:17:44,553 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-03-04 16:17:44,553 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-03-04 16:17:44,554 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-03-04 16:17:44,554 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-04 16:17:44,554 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-04 16:17:44,554 INFO L432 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-04 16:17:44,554 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-03-04 16:17:44,554 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-03-04 16:17:44,554 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-03-04 16:17:44,554 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-03-04 16:17:44,559 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 04.03 04:17:44 BoogieIcfgContainer [2025-03-04 16:17:44,560 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-03-04 16:17:44,560 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 16:17:44,560 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 16:17:44,560 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 16:17:44,561 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 04:17:42" (3/4) ... [2025-03-04 16:17:44,562 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-04 16:17:44,563 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 16:17:44,563 INFO L158 Benchmark]: Toolchain (without parser) took 2043.58ms. Allocated memory is still 142.6MB. Free memory was 105.9MB in the beginning and 39.5MB in the end (delta: 66.4MB). Peak memory consumption was 63.0MB. Max. memory is 16.1GB. [2025-03-04 16:17:44,563 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 116.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 16:17:44,564 INFO L158 Benchmark]: CACSL2BoogieTranslator took 133.31ms. Allocated memory is still 142.6MB. Free memory was 105.9MB in the beginning and 95.3MB in the end (delta: 10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 16:17:44,564 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.78ms. Allocated memory is still 142.6MB. Free memory was 95.3MB in the beginning and 94.6MB in the end (delta: 740.9kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 16:17:44,564 INFO L158 Benchmark]: Boogie Preprocessor took 25.76ms. Allocated memory is still 142.6MB. Free memory was 94.6MB in the beginning and 93.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 16:17:44,564 INFO L158 Benchmark]: IcfgBuilder took 182.38ms. Allocated memory is still 142.6MB. Free memory was 93.1MB in the beginning and 83.1MB in the end (delta: 10.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 16:17:44,564 INFO L158 Benchmark]: BuchiAutomizer took 1676.79ms. Allocated memory is still 142.6MB. Free memory was 83.1MB in the beginning and 40.1MB in the end (delta: 43.0MB). Peak memory consumption was 37.9MB. Max. memory is 16.1GB. [2025-03-04 16:17:44,564 INFO L158 Benchmark]: Witness Printer took 2.61ms. Allocated memory is still 142.6MB. Free memory was 40.1MB in the beginning and 39.5MB in the end (delta: 670.9kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 16:17:44,566 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 116.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 133.31ms. Allocated memory is still 142.6MB. Free memory was 105.9MB in the beginning and 95.3MB in the end (delta: 10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 18.78ms. Allocated memory is still 142.6MB. Free memory was 95.3MB in the beginning and 94.6MB in the end (delta: 740.9kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.76ms. Allocated memory is still 142.6MB. Free memory was 94.6MB in the beginning and 93.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 182.38ms. Allocated memory is still 142.6MB. Free memory was 93.1MB in the beginning and 83.1MB in the end (delta: 10.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 1676.79ms. Allocated memory is still 142.6MB. Free memory was 83.1MB in the beginning and 40.1MB in the end (delta: 43.0MB). Peak memory consumption was 37.9MB. Max. memory is 16.1GB. * Witness Printer took 2.61ms. Allocated memory is still 142.6MB. Free memory was 40.1MB in the beginning and 39.5MB in the end (delta: 670.9kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function \old(n) and consists of 11 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 27 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 27 mSDsluCounter, 33 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 75 IncrementalHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 15 mSDtfsCounter, 75 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital46 mio100 ax100 hnf100 lsp64 ukn97 mio100 lsp100 div100 bol100 ite100 ukn100 eq190 hnf97 smp100 dnf440 smp19 tf103 neg100 sie112 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 65ms VariablesStem: 1 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-03-04 16:17:44,577 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2025-03-04 16:17:44,778 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE