./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/b.13.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 48c9605d 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-restricted-15/b.13.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 1acb0c0dcfb78ab47001eb57f5095348cf0ba1fe26db78bd8f7dfec538bac19a --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 14:21:27,343 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 14:21:27,414 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2025-02-08 14:21:27,418 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 14:21:27,418 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 14:21:27,419 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-02-08 14:21:27,446 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 14:21:27,448 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 14:21:27,448 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 14:21:27,449 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 14:21:27,450 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 14:21:27,450 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 14:21:27,450 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 14:21:27,450 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 14:21:27,451 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-02-08 14:21:27,451 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-02-08 14:21:27,451 INFO L153 SettingsManager]: * Use old map elimination=false [2025-02-08 14:21:27,451 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-02-08 14:21:27,451 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-02-08 14:21:27,452 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-02-08 14:21:27,452 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 14:21:27,452 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-02-08 14:21:27,452 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 14:21:27,452 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 14:21:27,452 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-02-08 14:21:27,452 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-02-08 14:21:27,452 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-02-08 14:21:27,452 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 14:21:27,453 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 14:21:27,453 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-02-08 14:21:27,453 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 14:21:27,453 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 14:21:27,453 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 14:21:27,454 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 14:21:27,454 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 14:21:27,454 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 14:21:27,455 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-02-08 14:21:27,455 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 -> 1acb0c0dcfb78ab47001eb57f5095348cf0ba1fe26db78bd8f7dfec538bac19a [2025-02-08 14:21:27,738 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 14:21:27,748 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 14:21:27,750 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 14:21:27,751 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 14:21:27,752 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 14:21:27,753 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/b.13.c [2025-02-08 14:21:29,094 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3849bba33/f5c2780e8fae447c9f2ad9d7776defaa/FLAG4a3a0ae31 [2025-02-08 14:21:29,328 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 14:21:29,333 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/b.13.c [2025-02-08 14:21:29,356 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3849bba33/f5c2780e8fae447c9f2ad9d7776defaa/FLAG4a3a0ae31 [2025-02-08 14:21:29,660 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3849bba33/f5c2780e8fae447c9f2ad9d7776defaa [2025-02-08 14:21:29,662 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 14:21:29,663 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 14:21:29,665 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 14:21:29,665 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 14:21:29,669 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 14:21:29,670 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:21:29" (1/1) ... [2025-02-08 14:21:29,671 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57175298 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:29, skipping insertion in model container [2025-02-08 14:21:29,671 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:21:29" (1/1) ... [2025-02-08 14:21:29,681 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 14:21:29,803 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:21:29,808 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 14:21:29,818 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:21:29,830 INFO L204 MainTranslator]: Completed translation [2025-02-08 14:21:29,831 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:29 WrapperNode [2025-02-08 14:21:29,831 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 14:21:29,832 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 14:21:29,832 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 14:21:29,833 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 14:21:29,837 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:29" (1/1) ... [2025-02-08 14:21:29,840 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:29" (1/1) ... [2025-02-08 14:21:29,853 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2025-02-08 14:21:29,854 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 14:21:29,854 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 14:21:29,854 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 14:21:29,854 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 14:21:29,860 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:29" (1/1) ... [2025-02-08 14:21:29,861 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:29" (1/1) ... [2025-02-08 14:21:29,861 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:29" (1/1) ... [2025-02-08 14:21:29,866 INFO L175 MemorySlicer]: No memory access in input program. [2025-02-08 14:21:29,866 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:29" (1/1) ... [2025-02-08 14:21:29,866 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:29" (1/1) ... [2025-02-08 14:21:29,869 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:29" (1/1) ... [2025-02-08 14:21:29,869 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:29" (1/1) ... [2025-02-08 14:21:29,870 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:29" (1/1) ... [2025-02-08 14:21:29,871 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:29" (1/1) ... [2025-02-08 14:21:29,872 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 14:21:29,873 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 14:21:29,874 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 14:21:29,874 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 14:21:29,875 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:29" (1/1) ... [2025-02-08 14:21:29,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:29,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:29,907 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) [2025-02-08 14:21:29,914 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 [2025-02-08 14:21:29,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 14:21:29,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 14:21:29,987 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 14:21:29,989 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 14:21:30,064 INFO L? ?]: Removed 3 outVars from TransFormulas that were not future-live. [2025-02-08 14:21:30,065 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 14:21:30,072 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 14:21:30,072 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 14:21:30,073 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:21:30 BoogieIcfgContainer [2025-02-08 14:21:30,073 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 14:21:30,074 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-02-08 14:21:30,074 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-02-08 14:21:30,079 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-02-08 14:21:30,079 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-08 14:21:30,080 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 08.02 02:21:29" (1/3) ... [2025-02-08 14:21:30,081 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3be363c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.02 02:21:30, skipping insertion in model container [2025-02-08 14:21:30,081 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-08 14:21:30,081 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:29" (2/3) ... [2025-02-08 14:21:30,082 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3be363c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.02 02:21:30, skipping insertion in model container [2025-02-08 14:21:30,082 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-08 14:21:30,082 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:21:30" (3/3) ... [2025-02-08 14:21:30,083 INFO L363 chiAutomizerObserver]: Analyzing ICFG b.13.c [2025-02-08 14:21:30,135 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-02-08 14:21:30,136 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-02-08 14:21:30,136 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-02-08 14:21:30,136 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-02-08 14:21:30,136 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-02-08 14:21:30,137 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-02-08 14:21:30,137 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-02-08 14:21:30,137 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-02-08 14:21:30,142 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 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) [2025-02-08 14:21:30,155 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2025-02-08 14:21:30,155 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-08 14:21:30,156 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-08 14:21:30,161 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2025-02-08 14:21:30,161 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-08 14:21:30,162 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-02-08 14:21:30,163 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 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) [2025-02-08 14:21:30,163 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2025-02-08 14:21:30,163 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-08 14:21:30,163 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-08 14:21:30,163 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2025-02-08 14:21:30,164 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-08 14:21:30,169 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~c~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~c~0#1 := 0;" [2025-02-08 14:21:30,169 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~x~0#1 > main_~z~0#1 || main_~y~0#1 > main_~z~0#1;" "assume main_~x~0#1 > main_~z~0#1;main_~x~0#1 := main_~x~0#1 - 1;" [2025-02-08 14:21:30,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:21:30,176 INFO L85 PathProgramCache]: Analyzing trace with hash 37, now seen corresponding path program 1 times [2025-02-08 14:21:30,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:21:30,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523934010] [2025-02-08 14:21:30,183 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:21:30,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:21:30,241 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-08 14:21:30,244 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-08 14:21:30,244 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:30,245 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:30,245 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:21:30,249 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-08 14:21:30,250 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-08 14:21:30,251 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:30,251 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:30,266 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:21:30,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:21:30,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1117, now seen corresponding path program 1 times [2025-02-08 14:21:30,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:21:30,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928196009] [2025-02-08 14:21:30,270 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:21:30,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:21:30,275 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 14:21:30,280 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 14:21:30,281 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:30,281 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:30,281 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:21:30,284 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 14:21:30,288 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 14:21:30,291 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:30,291 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:30,293 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:21:30,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:21:30,296 INFO L85 PathProgramCache]: Analyzing trace with hash 35713, now seen corresponding path program 1 times [2025-02-08 14:21:30,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:21:30,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863897842] [2025-02-08 14:21:30,296 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:21:30,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:21:30,301 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 14:21:30,303 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 14:21:30,304 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:30,304 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:30,304 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:21:30,305 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 14:21:30,310 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 14:21:30,311 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:30,312 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:30,313 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:21:30,397 INFO L204 LassoAnalysis]: Preferences: [2025-02-08 14:21:30,398 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-08 14:21:30,399 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-08 14:21:30,399 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-08 14:21:30,399 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-08 14:21:30,400 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:30,400 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-08 14:21:30,400 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-08 14:21:30,400 INFO L132 ssoRankerPreferences]: Filename of dumped script: b.13.c_Iteration1_Loop [2025-02-08 14:21:30,400 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-08 14:21:30,400 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-08 14:21:30,413 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:30,426 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:30,434 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:30,512 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-08 14:21:30,512 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-08 14:21:30,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:30,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:30,518 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) [2025-02-08 14:21:30,520 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 [2025-02-08 14:21:30,521 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-08 14:21:30,521 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:21:30,548 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-08 14:21:30,549 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-08 14:21:30,557 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2025-02-08 14:21:30,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:30,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:30,560 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) [2025-02-08 14:21:30,563 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-08 14:21:30,563 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:21:30,566 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 [2025-02-08 14:21:30,585 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-08 14:21:30,585 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-08 14:21:30,593 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 [2025-02-08 14:21:30,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:30,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:30,596 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) [2025-02-08 14:21:30,597 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 [2025-02-08 14:21:30,602 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-08 14:21:30,602 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:21:30,627 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2025-02-08 14:21:30,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:30,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:30,630 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) [2025-02-08 14:21:30,632 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 [2025-02-08 14:21:30,633 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-08 14:21:30,633 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:21:30,738 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-08 14:21:30,744 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 [2025-02-08 14:21:30,745 INFO L204 LassoAnalysis]: Preferences: [2025-02-08 14:21:30,745 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-08 14:21:30,745 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-08 14:21:30,745 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-08 14:21:30,745 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-08 14:21:30,745 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:30,745 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-08 14:21:30,745 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-08 14:21:30,745 INFO L132 ssoRankerPreferences]: Filename of dumped script: b.13.c_Iteration1_Loop [2025-02-08 14:21:30,745 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-08 14:21:30,745 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-08 14:21:30,747 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:30,756 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:30,762 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:30,833 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-08 14:21:30,837 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-08 14:21:30,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:30,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:30,840 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) [2025-02-08 14:21:30,843 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 [2025-02-08 14:21:30,844 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 [2025-02-08 14:21:30,858 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:21:30,858 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:21:30,858 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:21:30,859 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:21:30,865 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-08 14:21:30,865 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-08 14:21:30,874 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:21:30,882 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2025-02-08 14:21:30,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:30,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:30,884 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) [2025-02-08 14:21:30,886 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 [2025-02-08 14:21:30,887 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 [2025-02-08 14:21:30,900 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:21:30,900 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:21:30,900 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:21:30,900 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:21:30,903 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-08 14:21:30,904 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-08 14:21:30,909 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:21:30,916 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2025-02-08 14:21:30,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:30,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:30,919 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) [2025-02-08 14:21:30,920 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 [2025-02-08 14:21:30,921 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 [2025-02-08 14:21:30,931 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:21:30,931 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-08 14:21:30,931 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:21:30,932 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:21:30,932 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:21:30,933 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-08 14:21:30,933 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-08 14:21:30,940 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-08 14:21:30,946 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-02-08 14:21:30,948 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-08 14:21:30,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:30,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:30,953 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) [2025-02-08 14:21:30,954 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 [2025-02-08 14:21:30,954 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-08 14:21:30,955 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-08 14:21:30,955 INFO L474 LassoAnalysis]: Proved termination. [2025-02-08 14:21:30,955 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~z~0#1) = 1*ULTIMATE.start_main_~x~0#1 - 1*ULTIMATE.start_main_~z~0#1 Supporting invariants [] [2025-02-08 14:21:30,961 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 [2025-02-08 14:21:30,965 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-08 14:21:30,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:21:30,997 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-08 14:21:30,997 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-08 14:21:30,998 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:30,998 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:21:30,999 WARN L254 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-08 14:21:30,999 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:21:31,005 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 14:21:31,007 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 14:21:31,007 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:31,007 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:21:31,007 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 14:21:31,008 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:21:31,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:21:31,043 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2025-02-08 14:21:31,044 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 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 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:21:31,080 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 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 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 13 states and 20 transitions. Complement of second has 5 states. [2025-02-08 14:21:31,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-02-08 14:21:31,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:21:31,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2025-02-08 14:21:31,094 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 1 letters. Loop has 2 letters. [2025-02-08 14:21:31,098 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:21:31,098 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 2 letters. [2025-02-08 14:21:31,098 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:21:31,098 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 1 letters. Loop has 4 letters. [2025-02-08 14:21:31,098 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:21:31,099 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 20 transitions. [2025-02-08 14:21:31,100 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2025-02-08 14:21:31,102 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 10 states and 15 transitions. [2025-02-08 14:21:31,103 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2025-02-08 14:21:31,103 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2025-02-08 14:21:31,104 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 15 transitions. [2025-02-08 14:21:31,104 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-08 14:21:31,104 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 15 transitions. [2025-02-08 14:21:31,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 15 transitions. [2025-02-08 14:21:31,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2025-02-08 14:21:31,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:21:31,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 14 transitions. [2025-02-08 14:21:31,121 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 14 transitions. [2025-02-08 14:21:31,122 INFO L432 stractBuchiCegarLoop]: Abstraction has 9 states and 14 transitions. [2025-02-08 14:21:31,122 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-02-08 14:21:31,122 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 14 transitions. [2025-02-08 14:21:31,122 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2025-02-08 14:21:31,122 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-08 14:21:31,122 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-08 14:21:31,123 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-08 14:21:31,123 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-08 14:21:31,123 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~c~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~c~0#1 := 0;" "assume main_~x~0#1 > main_~z~0#1 || main_~y~0#1 > main_~z~0#1;" [2025-02-08 14:21:31,123 INFO L754 eck$LassoCheckResult]: Loop: "assume !(main_~x~0#1 > main_~z~0#1);" "assume main_~y~0#1 > main_~z~0#1;main_~y~0#1 := main_~y~0#1 - 1;" "assume main_~x~0#1 > main_~z~0#1 || main_~y~0#1 > main_~z~0#1;" [2025-02-08 14:21:31,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:21:31,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1152, now seen corresponding path program 1 times [2025-02-08 14:21:31,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:21:31,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181716770] [2025-02-08 14:21:31,124 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:21:31,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:21:31,127 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 14:21:31,129 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 14:21:31,129 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:31,129 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:31,129 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:21:31,130 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 14:21:31,131 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 14:21:31,131 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:31,132 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:31,134 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:21:31,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:21:31,134 INFO L85 PathProgramCache]: Analyzing trace with hash 33702, now seen corresponding path program 1 times [2025-02-08 14:21:31,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:21:31,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323228746] [2025-02-08 14:21:31,135 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:21:31,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:21:31,138 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 14:21:31,142 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 14:21:31,142 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:31,142 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:31,142 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:21:31,143 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 14:21:31,145 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 14:21:31,145 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:31,146 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:31,147 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:21:31,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:21:31,149 INFO L85 PathProgramCache]: Analyzing trace with hash 34323143, now seen corresponding path program 1 times [2025-02-08 14:21:31,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:21:31,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531568951] [2025-02-08 14:21:31,149 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:21:31,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:21:31,157 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-08 14:21:31,161 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-08 14:21:31,164 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:31,164 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:31,164 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:21:31,165 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-08 14:21:31,168 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-08 14:21:31,169 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:31,169 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:31,172 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:21:31,206 INFO L204 LassoAnalysis]: Preferences: [2025-02-08 14:21:31,206 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-08 14:21:31,206 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-08 14:21:31,206 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-08 14:21:31,206 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-08 14:21:31,207 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:31,207 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-08 14:21:31,207 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-08 14:21:31,208 INFO L132 ssoRankerPreferences]: Filename of dumped script: b.13.c_Iteration2_Loop [2025-02-08 14:21:31,208 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-08 14:21:31,208 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-08 14:21:31,209 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:31,213 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:31,215 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:31,294 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-08 14:21:31,294 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-08 14:21:31,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:31,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:31,296 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2025-02-08 14:21:31,298 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) [2025-02-08 14:21:31,299 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 [2025-02-08 14:21:31,300 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-08 14:21:31,300 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:21:31,319 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-08 14:21:31,319 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-08 14:21:31,324 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 [2025-02-08 14:21:31,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:31,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:31,327 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) [2025-02-08 14:21:31,328 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 [2025-02-08 14:21:31,329 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-08 14:21:31,329 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:21:31,346 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-08 14:21:31,346 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-08 14:21:31,352 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 [2025-02-08 14:21:31,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:31,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:31,354 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) [2025-02-08 14:21:31,355 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 [2025-02-08 14:21:31,355 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-08 14:21:31,355 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:21:31,375 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 [2025-02-08 14:21:31,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:31,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:31,378 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) [2025-02-08 14:21:31,379 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 [2025-02-08 14:21:31,380 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-08 14:21:31,380 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:21:31,511 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-08 14:21:31,517 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 [2025-02-08 14:21:31,517 INFO L204 LassoAnalysis]: Preferences: [2025-02-08 14:21:31,517 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-08 14:21:31,517 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-08 14:21:31,517 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-08 14:21:31,517 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-08 14:21:31,517 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:31,517 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-08 14:21:31,517 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-08 14:21:31,517 INFO L132 ssoRankerPreferences]: Filename of dumped script: b.13.c_Iteration2_Loop [2025-02-08 14:21:31,517 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-08 14:21:31,517 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-08 14:21:31,519 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:31,524 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:31,532 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:31,569 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-08 14:21:31,569 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-08 14:21:31,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:31,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:31,572 INFO L229 MonitoredProcess]: Starting monitored process 14 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) [2025-02-08 14:21:31,574 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2025-02-08 14:21:31,575 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 [2025-02-08 14:21:31,587 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:21:31,587 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:21:31,587 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:21:31,587 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:21:31,589 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-08 14:21:31,589 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-08 14:21:31,595 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:21:31,601 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2025-02-08 14:21:31,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:31,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:31,603 INFO L229 MonitoredProcess]: Starting monitored process 15 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) [2025-02-08 14:21:31,604 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2025-02-08 14:21:31,605 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 [2025-02-08 14:21:31,615 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:21:31,615 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-08 14:21:31,616 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:21:31,616 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:21:31,616 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:21:31,617 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-08 14:21:31,617 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-08 14:21:31,620 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-08 14:21:31,624 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-02-08 14:21:31,624 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-08 14:21:31,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:31,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:31,649 INFO L229 MonitoredProcess]: Starting monitored process 16 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) [2025-02-08 14:21:31,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2025-02-08 14:21:31,651 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-08 14:21:31,651 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-08 14:21:31,651 INFO L474 LassoAnalysis]: Proved termination. [2025-02-08 14:21:31,651 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0#1, ULTIMATE.start_main_~y~0#1) = -1*ULTIMATE.start_main_~z~0#1 + 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2025-02-08 14:21:31,657 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2025-02-08 14:21:31,659 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-08 14:21:31,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:21:31,686 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 14:21:31,687 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 14:21:31,687 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:31,687 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:21:31,688 INFO L256 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-08 14:21:31,688 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:21:31,697 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 14:21:31,700 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 14:21:31,700 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:31,700 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:21:31,701 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 14:21:31,701 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:21:31,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:21:31,758 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-02-08 14:21:31,758 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 14 transitions. cyclomatic complexity: 7 Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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) [2025-02-08 14:21:31,797 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 14 transitions. cyclomatic complexity: 7. Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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 35 states and 53 transitions. Complement of second has 7 states. [2025-02-08 14:21:31,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-08 14:21:31,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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) [2025-02-08 14:21:31,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 18 transitions. [2025-02-08 14:21:31,800 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 2 letters. Loop has 3 letters. [2025-02-08 14:21:31,800 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:21:31,800 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 5 letters. Loop has 3 letters. [2025-02-08 14:21:31,801 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:21:31,801 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 2 letters. Loop has 6 letters. [2025-02-08 14:21:31,801 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:21:31,801 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 53 transitions. [2025-02-08 14:21:31,803 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2025-02-08 14:21:31,805 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 24 states and 35 transitions. [2025-02-08 14:21:31,805 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2025-02-08 14:21:31,805 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2025-02-08 14:21:31,805 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 35 transitions. [2025-02-08 14:21:31,805 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-08 14:21:31,805 INFO L218 hiAutomatonCegarLoop]: Abstraction has 24 states and 35 transitions. [2025-02-08 14:21:31,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 35 transitions. [2025-02-08 14:21:31,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 20. [2025-02-08 14:21:31,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.55) internal successors, (31), 19 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:21:31,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 31 transitions. [2025-02-08 14:21:31,809 INFO L240 hiAutomatonCegarLoop]: Abstraction has 20 states and 31 transitions. [2025-02-08 14:21:31,809 INFO L432 stractBuchiCegarLoop]: Abstraction has 20 states and 31 transitions. [2025-02-08 14:21:31,809 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-02-08 14:21:31,809 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 31 transitions. [2025-02-08 14:21:31,810 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2025-02-08 14:21:31,810 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-08 14:21:31,810 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-08 14:21:31,810 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-02-08 14:21:31,810 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-08 14:21:31,810 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~c~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~c~0#1 := 0;" "assume main_~x~0#1 > main_~z~0#1 || main_~y~0#1 > main_~z~0#1;" "assume !(main_~x~0#1 > main_~z~0#1);" [2025-02-08 14:21:31,810 INFO L754 eck$LassoCheckResult]: Loop: "assume !(main_~y~0#1 > main_~z~0#1);" "assume main_~x~0#1 > main_~z~0#1 || main_~y~0#1 > main_~z~0#1;" "assume !(main_~x~0#1 > main_~z~0#1);" [2025-02-08 14:21:31,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:21:31,811 INFO L85 PathProgramCache]: Analyzing trace with hash 35716, now seen corresponding path program 1 times [2025-02-08 14:21:31,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:21:31,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795922584] [2025-02-08 14:21:31,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:21:31,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:21:31,816 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 14:21:31,817 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 14:21:31,817 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:31,817 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:31,817 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:21:31,818 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 14:21:31,821 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 14:21:31,821 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:31,821 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:31,821 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:21:31,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:21:31,822 INFO L85 PathProgramCache]: Analyzing trace with hash 32833, now seen corresponding path program 1 times [2025-02-08 14:21:31,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:21:31,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926607873] [2025-02-08 14:21:31,822 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:21:31,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:21:31,826 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 14:21:31,829 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 14:21:31,829 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:31,829 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:21:31,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:21:31,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:21:31,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926607873] [2025-02-08 14:21:31,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926607873] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:21:31,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:21:31,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:21:31,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856082355] [2025-02-08 14:21:31,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:21:31,869 INFO L769 eck$LassoCheckResult]: loop already infeasible [2025-02-08 14:21:31,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:21:31,870 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:21:31,870 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:21:31,871 INFO L87 Difference]: Start difference. First operand 20 states and 31 transitions. cyclomatic complexity: 15 Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:21:31,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 14:21:31,892 INFO L93 Difference]: Finished difference Result 22 states and 30 transitions. [2025-02-08 14:21:31,892 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 30 transitions. [2025-02-08 14:21:31,895 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-08 14:21:31,895 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 0 states and 0 transitions. [2025-02-08 14:21:31,895 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-02-08 14:21:31,895 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-02-08 14:21:31,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-02-08 14:21:31,895 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-08 14:21:31,895 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-08 14:21:31,895 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-08 14:21:31,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:21:31,896 INFO L432 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-08 14:21:31,896 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-02-08 14:21:31,896 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-02-08 14:21:31,896 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-08 14:21:31,896 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-02-08 14:21:31,907 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 08.02 02:21:31 BoogieIcfgContainer [2025-02-08 14:21:31,907 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-02-08 14:21:31,907 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 14:21:31,907 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 14:21:31,907 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 14:21:31,909 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:21:30" (3/4) ... [2025-02-08 14:21:31,911 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-08 14:21:31,911 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 14:21:31,912 INFO L158 Benchmark]: Toolchain (without parser) took 2248.54ms. Allocated memory is still 142.6MB. Free memory was 115.2MB in the beginning and 88.2MB in the end (delta: 27.0MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. [2025-02-08 14:21:31,912 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 201.3MB. Free memory is still 124.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:21:31,912 INFO L158 Benchmark]: CACSL2BoogieTranslator took 167.09ms. Allocated memory is still 142.6MB. Free memory was 114.7MB in the beginning and 104.9MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:21:31,913 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.49ms. Allocated memory is still 142.6MB. Free memory was 104.9MB in the beginning and 104.0MB in the end (delta: 901.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:21:31,913 INFO L158 Benchmark]: Boogie Preprocessor took 18.24ms. Allocated memory is still 142.6MB. Free memory was 104.0MB in the beginning and 103.5MB in the end (delta: 489.4kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:21:31,913 INFO L158 Benchmark]: IcfgBuilder took 199.93ms. Allocated memory is still 142.6MB. Free memory was 103.5MB in the beginning and 93.2MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:21:31,915 INFO L158 Benchmark]: BuchiAutomizer took 1832.86ms. Allocated memory is still 142.6MB. Free memory was 93.2MB in the beginning and 88.2MB in the end (delta: 5.0MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2025-02-08 14:21:31,915 INFO L158 Benchmark]: Witness Printer took 4.13ms. Allocated memory is still 142.6MB. Free memory was 88.2MB in the beginning and 88.2MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:21:31,916 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 201.3MB. Free memory is still 124.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 167.09ms. Allocated memory is still 142.6MB. Free memory was 114.7MB in the beginning and 104.9MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.49ms. Allocated memory is still 142.6MB. Free memory was 104.9MB in the beginning and 104.0MB in the end (delta: 901.6kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 18.24ms. Allocated memory is still 142.6MB. Free memory was 104.0MB in the beginning and 103.5MB in the end (delta: 489.4kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 199.93ms. Allocated memory is still 142.6MB. Free memory was 103.5MB in the beginning and 93.2MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1832.86ms. Allocated memory is still 142.6MB. Free memory was 93.2MB in the beginning and 88.2MB in the end (delta: 5.0MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. * Witness Printer took 4.13ms. Allocated memory is still 142.6MB. Free memory was 88.2MB in the beginning and 88.2MB in the end (delta: 27.1kB). 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 (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function (((long) -1 * z) + x) and consists of 3 locations. One deterministic module has affine ranking function (((long) -1 * z) + y) and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.7s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 5 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, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 45 IncrementalHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 9 mSDtfsCounter, 45 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax190 hnf100 lsp52 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq145 hnf94 smp100 dnf100 smp100 tf110 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 36ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-02-08 14:21:31,929 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2025-02-08 14:21:32,131 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