./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/c.03.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/c.03.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 00dc17c984df5ef18e52428a0e023f5c7f435e241bde642a6a36d0c35bef02ae --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 14:21:33,383 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 14:21:33,433 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2025-02-08 14:21:33,439 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 14:21:33,440 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 14:21:33,440 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-02-08 14:21:33,466 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 14:21:33,467 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 14:21:33,468 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 14:21:33,468 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 14:21:33,468 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 14:21:33,469 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 14:21:33,469 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 14:21:33,469 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 14:21:33,469 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-02-08 14:21:33,469 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-02-08 14:21:33,470 INFO L153 SettingsManager]: * Use old map elimination=false [2025-02-08 14:21:33,470 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-02-08 14:21:33,470 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-02-08 14:21:33,470 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-02-08 14:21:33,470 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 14:21:33,470 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-02-08 14:21:33,470 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 14:21:33,470 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 14:21:33,470 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-02-08 14:21:33,470 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-02-08 14:21:33,470 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-02-08 14:21:33,470 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 14:21:33,470 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 14:21:33,470 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-02-08 14:21:33,471 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 14:21:33,471 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 14:21:33,471 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 14:21:33,471 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 14:21:33,471 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 14:21:33,471 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 14:21:33,472 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-02-08 14:21:33,472 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 -> 00dc17c984df5ef18e52428a0e023f5c7f435e241bde642a6a36d0c35bef02ae [2025-02-08 14:21:33,704 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 14:21:33,712 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 14:21:33,713 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 14:21:33,715 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 14:21:33,716 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 14:21:33,716 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/c.03.c [2025-02-08 14:21:34,914 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1032c34d8/16844e6935cf43c39b6c254411125d8f/FLAGf2734125d [2025-02-08 14:21:35,117 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 14:21:35,118 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/c.03.c [2025-02-08 14:21:35,141 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1032c34d8/16844e6935cf43c39b6c254411125d8f/FLAGf2734125d [2025-02-08 14:21:35,487 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1032c34d8/16844e6935cf43c39b6c254411125d8f [2025-02-08 14:21:35,489 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 14:21:35,490 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 14:21:35,492 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 14:21:35,492 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 14:21:35,495 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 14:21:35,496 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:21:35" (1/1) ... [2025-02-08 14:21:35,496 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@633786e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:35, skipping insertion in model container [2025-02-08 14:21:35,497 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:21:35" (1/1) ... [2025-02-08 14:21:35,508 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 14:21:35,602 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:21:35,606 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 14:21:35,615 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:21:35,625 INFO L204 MainTranslator]: Completed translation [2025-02-08 14:21:35,626 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:35 WrapperNode [2025-02-08 14:21:35,626 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 14:21:35,628 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 14:21:35,628 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 14:21:35,628 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 14:21:35,632 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:35" (1/1) ... [2025-02-08 14:21:35,635 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:35" (1/1) ... [2025-02-08 14:21:35,646 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2025-02-08 14:21:35,647 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 14:21:35,648 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 14:21:35,648 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 14:21:35,648 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 14:21:35,654 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:35" (1/1) ... [2025-02-08 14:21:35,654 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:35" (1/1) ... [2025-02-08 14:21:35,655 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:35" (1/1) ... [2025-02-08 14:21:35,659 INFO L175 MemorySlicer]: No memory access in input program. [2025-02-08 14:21:35,659 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:35" (1/1) ... [2025-02-08 14:21:35,659 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:35" (1/1) ... [2025-02-08 14:21:35,662 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:35" (1/1) ... [2025-02-08 14:21:35,663 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:35" (1/1) ... [2025-02-08 14:21:35,663 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:35" (1/1) ... [2025-02-08 14:21:35,663 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:35" (1/1) ... [2025-02-08 14:21:35,664 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 14:21:35,666 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 14:21:35,667 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 14:21:35,667 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 14:21:35,668 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:35" (1/1) ... [2025-02-08 14:21:35,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:35,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:35,695 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 14:21:35,698 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 14:21:35,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 14:21:35,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 14:21:35,775 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 14:21:35,776 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 14:21:35,832 INFO L? ?]: Removed 3 outVars from TransFormulas that were not future-live. [2025-02-08 14:21:35,832 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 14:21:35,838 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 14:21:35,839 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 14:21:35,839 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:21:35 BoogieIcfgContainer [2025-02-08 14:21:35,839 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 14:21:35,840 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-02-08 14:21:35,840 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-02-08 14:21:35,844 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-02-08 14:21:35,845 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-08 14:21:35,845 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 08.02 02:21:35" (1/3) ... [2025-02-08 14:21:35,846 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4e939ae4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.02 02:21:35, skipping insertion in model container [2025-02-08 14:21:35,846 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-08 14:21:35,847 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:21:35" (2/3) ... [2025-02-08 14:21:35,848 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4e939ae4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.02 02:21:35, skipping insertion in model container [2025-02-08 14:21:35,848 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-08 14:21:35,849 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:21:35" (3/3) ... [2025-02-08 14:21:35,850 INFO L363 chiAutomizerObserver]: Analyzing ICFG c.03.c [2025-02-08 14:21:35,893 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-02-08 14:21:35,893 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-02-08 14:21:35,893 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-02-08 14:21:35,893 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-02-08 14:21:35,893 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-02-08 14:21:35,894 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-02-08 14:21:35,894 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-02-08 14:21:35,894 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-02-08 14:21:35,898 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 14:21:35,910 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2025-02-08 14:21:35,911 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-08 14:21:35,911 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-08 14:21:35,914 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2025-02-08 14:21:35,914 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-08 14:21:35,915 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-02-08 14:21:35,915 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 14:21:35,916 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2025-02-08 14:21:35,916 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-08 14:21:35,916 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-08 14:21:35,916 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2025-02-08 14:21:35,916 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-08 14:21:35,921 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~c~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~c~0#1 := 0;" [2025-02-08 14:21:35,921 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~x~0#1 < main_~y~0#1 && main_~z~0#1 < 2147483647;" "assume main_~x~0#1 < main_~z~0#1;main_~x~0#1 := 1 + main_~x~0#1;" [2025-02-08 14:21:35,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:21:35,925 INFO L85 PathProgramCache]: Analyzing trace with hash 35, now seen corresponding path program 1 times [2025-02-08 14:21:35,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:21:35,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59697784] [2025-02-08 14:21:35,931 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:21:35,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:21:35,975 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-08 14:21:35,976 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-08 14:21:35,977 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:35,977 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:35,977 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:21:35,979 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-08 14:21:35,980 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-08 14:21:35,980 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:35,980 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:35,990 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:21:35,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:21:35,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1055, now seen corresponding path program 1 times [2025-02-08 14:21:35,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:21:35,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123677980] [2025-02-08 14:21:35,993 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:21:35,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:21:36,000 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 14:21:36,006 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 14:21:36,006 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:36,006 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:36,006 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:21:36,010 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 14:21:36,011 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 14:21:36,013 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:36,013 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:36,014 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:21:36,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:21:36,016 INFO L85 PathProgramCache]: Analyzing trace with hash 33729, now seen corresponding path program 1 times [2025-02-08 14:21:36,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:21:36,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084605336] [2025-02-08 14:21:36,016 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:21:36,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:21:36,021 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 14:21:36,026 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 14:21:36,027 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:36,027 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:36,027 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:21:36,029 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 14:21:36,030 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 14:21:36,030 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:36,030 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:36,031 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:21:36,099 INFO L204 LassoAnalysis]: Preferences: [2025-02-08 14:21:36,099 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-08 14:21:36,099 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-08 14:21:36,100 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-08 14:21:36,100 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-08 14:21:36,100 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:36,100 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-08 14:21:36,100 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-08 14:21:36,100 INFO L132 ssoRankerPreferences]: Filename of dumped script: c.03.c_Iteration1_Loop [2025-02-08 14:21:36,100 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-08 14:21:36,100 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-08 14:21:36,112 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:36,120 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:36,126 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:36,191 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-08 14:21:36,191 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-08 14:21:36,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:36,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:36,195 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 14:21:36,197 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 14:21:36,197 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-08 14:21:36,198 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:21:36,219 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-08 14:21:36,219 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 14:21:36,225 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 14:21:36,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:36,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:36,227 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 14:21:36,228 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 14:21:36,229 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-08 14:21:36,229 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:21:36,248 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-08 14:21:36,248 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 14:21:36,254 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2025-02-08 14:21:36,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:36,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:36,256 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 14:21:36,256 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 14:21:36,258 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-08 14:21:36,258 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:21:36,275 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2025-02-08 14:21:36,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:36,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:36,277 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 14:21:36,278 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 14:21:36,278 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-08 14:21:36,278 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:21:36,298 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-08 14:21:36,302 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 14:21:36,302 INFO L204 LassoAnalysis]: Preferences: [2025-02-08 14:21:36,303 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-08 14:21:36,303 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-08 14:21:36,303 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-08 14:21:36,303 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-08 14:21:36,303 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:36,303 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-08 14:21:36,303 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-08 14:21:36,303 INFO L132 ssoRankerPreferences]: Filename of dumped script: c.03.c_Iteration1_Loop [2025-02-08 14:21:36,303 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-08 14:21:36,303 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-08 14:21:36,304 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:36,309 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:36,321 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:36,368 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-08 14:21:36,371 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-08 14:21:36,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:36,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:36,373 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 14:21:36,375 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 14:21:36,375 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 14:21:36,386 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:21:36,387 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:21:36,387 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:21:36,387 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:21:36,395 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-08 14:21:36,395 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-08 14:21:36,403 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:21:36,409 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 14:21:36,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:36,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:36,415 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 14:21:36,416 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 14:21:36,417 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 14:21:36,427 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:21:36,427 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-08 14:21:36,428 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:21:36,428 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:21:36,428 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:21:36,429 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-08 14:21:36,430 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-08 14:21:36,434 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-08 14:21:36,439 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-02-08 14:21:36,441 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-08 14:21:36,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:36,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:36,445 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 14:21:36,447 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 14:21:36,448 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-08 14:21:36,448 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-08 14:21:36,448 INFO L474 LassoAnalysis]: Proved termination. [2025-02-08 14:21:36,448 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 14:21:36,454 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 14:21:36,456 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-08 14:21:36,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:21:36,484 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-08 14:21:36,485 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-08 14:21:36,485 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:36,485 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:21:36,486 WARN L254 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-08 14:21:36,487 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:21:36,491 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 14:21:36,492 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 14:21:36,492 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:36,492 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:21:36,493 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 14:21:36,493 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:21:36,501 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 14:21:36,522 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 14:21:36,523 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 14:21:36,551 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 10 states and 15 transitions. Complement of second has 5 states. [2025-02-08 14:21:36,553 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 14:21:36,557 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 14:21:36,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3 transitions. [2025-02-08 14:21:36,561 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 3 transitions. Stem has 1 letters. Loop has 2 letters. [2025-02-08 14:21:36,562 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:21:36,562 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 3 transitions. Stem has 3 letters. Loop has 2 letters. [2025-02-08 14:21:36,562 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:21:36,562 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 3 transitions. Stem has 1 letters. Loop has 4 letters. [2025-02-08 14:21:36,562 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:21:36,563 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 15 transitions. [2025-02-08 14:21:36,563 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2025-02-08 14:21:36,565 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 7 states and 10 transitions. [2025-02-08 14:21:36,565 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2025-02-08 14:21:36,565 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2025-02-08 14:21:36,566 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2025-02-08 14:21:36,566 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-08 14:21:36,566 INFO L218 hiAutomatonCegarLoop]: Abstraction has 7 states and 10 transitions. [2025-02-08 14:21:36,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2025-02-08 14:21:36,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2025-02-08 14:21:36,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:21:36,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2025-02-08 14:21:36,580 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 10 transitions. [2025-02-08 14:21:36,580 INFO L432 stractBuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2025-02-08 14:21:36,581 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-02-08 14:21:36,581 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2025-02-08 14:21:36,581 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2025-02-08 14:21:36,581 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-08 14:21:36,581 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-08 14:21:36,581 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-02-08 14:21:36,581 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-08 14:21:36,581 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~c~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~c~0#1 := 0;" "assume main_~x~0#1 < main_~y~0#1 && main_~z~0#1 < 2147483647;" "assume !(main_~x~0#1 < main_~z~0#1);main_~z~0#1 := 1 + main_~z~0#1;" [2025-02-08 14:21:36,581 INFO L754 eck$LassoCheckResult]: Loop: "assume main_~x~0#1 < main_~y~0#1 && main_~z~0#1 < 2147483647;" "assume main_~x~0#1 < main_~z~0#1;main_~x~0#1 := 1 + main_~x~0#1;" [2025-02-08 14:21:36,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:21:36,582 INFO L85 PathProgramCache]: Analyzing trace with hash 33730, now seen corresponding path program 1 times [2025-02-08 14:21:36,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:21:36,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943145142] [2025-02-08 14:21:36,582 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:21:36,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:21:36,585 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 14:21:36,586 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 14:21:36,586 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:36,586 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:36,586 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:21:36,587 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 14:21:36,588 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 14:21:36,588 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:36,588 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:36,589 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:21:36,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:21:36,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1055, now seen corresponding path program 2 times [2025-02-08 14:21:36,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:21:36,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813401822] [2025-02-08 14:21:36,590 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:21:36,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:21:36,592 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 2 statements into 1 equivalence classes. [2025-02-08 14:21:36,593 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 14:21:36,593 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:21:36,593 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:36,593 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:21:36,594 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 14:21:36,595 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 14:21:36,595 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:36,595 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:36,596 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:21:36,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:21:36,596 INFO L85 PathProgramCache]: Analyzing trace with hash 32414624, now seen corresponding path program 1 times [2025-02-08 14:21:36,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:21:36,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272280789] [2025-02-08 14:21:36,596 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:21:36,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:21:36,599 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-08 14:21:36,601 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-08 14:21:36,601 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:36,601 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:36,601 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:21:36,602 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-08 14:21:36,604 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-08 14:21:36,604 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:36,604 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:36,605 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:21:36,626 INFO L204 LassoAnalysis]: Preferences: [2025-02-08 14:21:36,626 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-08 14:21:36,626 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-08 14:21:36,626 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-08 14:21:36,626 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-08 14:21:36,626 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:36,626 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-08 14:21:36,626 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-08 14:21:36,626 INFO L132 ssoRankerPreferences]: Filename of dumped script: c.03.c_Iteration2_Loop [2025-02-08 14:21:36,626 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-08 14:21:36,626 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-08 14:21:36,627 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:36,631 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:36,633 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:36,674 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-08 14:21:36,674 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-08 14:21:36,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:36,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:36,676 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 14:21:36,677 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 14:21:36,678 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-08 14:21:36,678 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:21:36,698 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-08 14:21:36,699 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 14:21:36,705 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2025-02-08 14:21:36,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:36,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:36,707 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 14:21:36,711 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 14:21:36,712 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-08 14:21:36,712 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:21:36,730 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-08 14:21:36,730 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 14:21:36,736 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 14:21:36,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:36,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:36,739 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 14:21:36,740 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 14:21:36,740 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-08 14:21:36,741 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:21:36,757 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 14:21:36,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:36,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:36,760 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 14:21:36,761 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 14:21:36,761 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-08 14:21:36,761 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:21:36,785 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-08 14:21:36,789 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 14:21:36,789 INFO L204 LassoAnalysis]: Preferences: [2025-02-08 14:21:36,789 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-08 14:21:36,789 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-08 14:21:36,789 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-08 14:21:36,789 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-08 14:21:36,789 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:36,789 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-08 14:21:36,790 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-08 14:21:36,790 INFO L132 ssoRankerPreferences]: Filename of dumped script: c.03.c_Iteration2_Loop [2025-02-08 14:21:36,790 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-08 14:21:36,790 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-08 14:21:36,791 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:36,795 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:36,797 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:36,837 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-08 14:21:36,838 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-08 14:21:36,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:36,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:36,839 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 14:21:36,841 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 14:21:36,842 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 14:21:36,852 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:21:36,852 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:21:36,852 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:21:36,852 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:21:36,854 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-08 14:21:36,855 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-08 14:21:36,857 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:21:36,863 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 14:21:36,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:36,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:36,866 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 14:21:36,867 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 14:21:36,869 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 14:21:36,879 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:21:36,879 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:21:36,879 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:21:36,879 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:21:36,881 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-08 14:21:36,881 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-08 14:21:36,884 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:21:36,891 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 14:21:36,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:36,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:36,894 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 14:21:36,896 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 14:21:36,897 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 14:21:36,908 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:21:36,908 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-08 14:21:36,908 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:21:36,908 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:21:36,908 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:21:36,910 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-08 14:21:36,910 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-08 14:21:36,912 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-08 14:21:36,918 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-02-08 14:21:36,918 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-08 14:21:36,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:36,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:36,921 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 14:21:36,934 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-08 14:21:36,935 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-08 14:21:36,935 INFO L474 LassoAnalysis]: Proved termination. [2025-02-08 14:21:36,935 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -2*ULTIMATE.start_main_~x~0#1 + 4294967291 Supporting invariants [] [2025-02-08 14:21:36,938 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 14:21:36,941 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2025-02-08 14:21:36,942 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-08 14:21:36,953 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 14:21:36,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:21:36,958 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 14:21:36,962 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 14:21:36,962 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:36,962 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:21:36,962 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-08 14:21:36,962 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:21:36,972 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 14:21:36,973 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 14:21:36,973 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:36,973 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:21:36,973 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 14:21:36,974 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:21:36,994 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 14:21:36,995 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-02-08 14:21:36,995 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:21:37,019 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 12 states and 17 transitions. Complement of second has 6 states. [2025-02-08 14:21:37,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-08 14:21:37,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:21:37,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2025-02-08 14:21:37,021 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 2 letters. [2025-02-08 14:21:37,021 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:21:37,021 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 5 letters. Loop has 2 letters. [2025-02-08 14:21:37,021 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:21:37,021 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 4 letters. [2025-02-08 14:21:37,021 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:21:37,022 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 17 transitions. [2025-02-08 14:21:37,022 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2025-02-08 14:21:37,022 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 17 transitions. [2025-02-08 14:21:37,022 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2025-02-08 14:21:37,022 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2025-02-08 14:21:37,022 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 17 transitions. [2025-02-08 14:21:37,022 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-08 14:21:37,022 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2025-02-08 14:21:37,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 17 transitions. [2025-02-08 14:21:37,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2025-02-08 14:21:37,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 10 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:21:37,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2025-02-08 14:21:37,025 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 16 transitions. [2025-02-08 14:21:37,025 INFO L432 stractBuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2025-02-08 14:21:37,025 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-02-08 14:21:37,025 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 16 transitions. [2025-02-08 14:21:37,026 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2025-02-08 14:21:37,026 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-08 14:21:37,026 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-08 14:21:37,026 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1] [2025-02-08 14:21:37,026 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-08 14:21:37,026 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~c~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~c~0#1 := 0;" "assume main_~x~0#1 < main_~y~0#1 && main_~z~0#1 < 2147483647;" "assume !(main_~x~0#1 < main_~z~0#1);main_~z~0#1 := 1 + main_~z~0#1;" "assume main_~x~0#1 < main_~y~0#1 && main_~z~0#1 < 2147483647;" [2025-02-08 14:21:37,026 INFO L754 eck$LassoCheckResult]: Loop: "assume !(main_~x~0#1 < main_~z~0#1);main_~z~0#1 := 1 + main_~z~0#1;" "assume main_~x~0#1 < main_~y~0#1 && main_~z~0#1 < 2147483647;" [2025-02-08 14:21:37,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:21:37,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1045633, now seen corresponding path program 2 times [2025-02-08 14:21:37,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:21:37,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841551323] [2025-02-08 14:21:37,027 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:21:37,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:21:37,030 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 4 statements into 2 equivalence classes. [2025-02-08 14:21:37,032 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 4 of 4 statements. [2025-02-08 14:21:37,032 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 14:21:37,032 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:37,032 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:21:37,033 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-08 14:21:37,035 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-08 14:21:37,035 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:37,035 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:37,036 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:21:37,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:21:37,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1026, now seen corresponding path program 1 times [2025-02-08 14:21:37,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:21:37,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921750656] [2025-02-08 14:21:37,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:21:37,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:21:37,039 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 14:21:37,040 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 14:21:37,040 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:37,040 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:37,040 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:21:37,041 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 14:21:37,042 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 14:21:37,042 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:37,042 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:37,043 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:21:37,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:21:37,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1004853378, now seen corresponding path program 3 times [2025-02-08 14:21:37,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:21:37,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629652063] [2025-02-08 14:21:37,044 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 14:21:37,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:21:37,047 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 6 statements into 3 equivalence classes. [2025-02-08 14:21:37,050 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:21:37,050 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-02-08 14:21:37,050 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:37,050 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:21:37,051 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:21:37,054 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:21:37,054 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:37,054 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:21:37,055 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:21:37,078 INFO L204 LassoAnalysis]: Preferences: [2025-02-08 14:21:37,078 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-08 14:21:37,078 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-08 14:21:37,078 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-08 14:21:37,079 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-08 14:21:37,079 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:37,079 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-08 14:21:37,079 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-08 14:21:37,079 INFO L132 ssoRankerPreferences]: Filename of dumped script: c.03.c_Iteration3_Loop [2025-02-08 14:21:37,079 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-08 14:21:37,079 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-08 14:21:37,080 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:37,083 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:37,091 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:37,126 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-08 14:21:37,126 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-08 14:21:37,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:37,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:37,129 INFO L229 MonitoredProcess]: Starting monitored process 17 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 14:21:37,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2025-02-08 14:21:37,133 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-08 14:21:37,133 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:21:37,150 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-08 14:21:37,151 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-08 14:21:37,156 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2025-02-08 14:21:37,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:37,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:37,159 INFO L229 MonitoredProcess]: Starting monitored process 18 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 14:21:37,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2025-02-08 14:21:37,161 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-08 14:21:37,161 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:21:37,179 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2025-02-08 14:21:37,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:37,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:37,181 INFO L229 MonitoredProcess]: Starting monitored process 19 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 14:21:37,182 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2025-02-08 14:21:37,183 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-08 14:21:37,183 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:21:37,201 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-08 14:21:37,205 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2025-02-08 14:21:37,205 INFO L204 LassoAnalysis]: Preferences: [2025-02-08 14:21:37,206 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-08 14:21:37,206 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-08 14:21:37,206 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-08 14:21:37,206 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-08 14:21:37,206 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:37,206 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-08 14:21:37,206 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-08 14:21:37,206 INFO L132 ssoRankerPreferences]: Filename of dumped script: c.03.c_Iteration3_Loop [2025-02-08 14:21:37,206 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-08 14:21:37,206 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-08 14:21:37,207 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:37,210 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:37,227 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:21:37,269 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-08 14:21:37,269 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-08 14:21:37,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:37,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:37,271 INFO L229 MonitoredProcess]: Starting monitored process 20 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 14:21:37,273 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2025-02-08 14:21:37,275 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 14:21:37,285 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:21:37,285 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:21:37,285 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:21:37,285 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:21:37,288 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-08 14:21:37,288 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-08 14:21:37,295 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:21:37,302 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2025-02-08 14:21:37,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:37,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:37,304 INFO L229 MonitoredProcess]: Starting monitored process 21 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 14:21:37,306 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2025-02-08 14:21:37,306 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 14:21:37,317 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:21:37,317 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-08 14:21:37,317 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:21:37,317 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:21:37,317 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:21:37,319 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-08 14:21:37,319 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-08 14:21:37,324 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-08 14:21:37,334 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-02-08 14:21:37,334 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-08 14:21:37,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:21:37,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:21:37,336 INFO L229 MonitoredProcess]: Starting monitored process 22 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 14:21:37,337 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2025-02-08 14:21:37,337 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-08 14:21:37,337 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-08 14:21:37,337 INFO L474 LassoAnalysis]: Proved termination. [2025-02-08 14:21:37,337 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0#1) = -2*ULTIMATE.start_main_~z~0#1 + 4294967291 Supporting invariants [] [2025-02-08 14:21:37,343 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2025-02-08 14:21:37,344 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-08 14:21:37,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:21:37,364 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-08 14:21:37,366 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-08 14:21:37,366 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:37,366 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:21:37,367 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-08 14:21:37,367 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:21:37,374 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 14:21:37,376 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 14:21:37,376 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:21:37,376 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:21:37,376 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 14:21:37,376 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:21:37,399 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 14:21:37,400 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-02-08 14:21:37,400 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 14:21:37,430 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 28 states and 37 transitions. Complement of second has 6 states. [2025-02-08 14:21:37,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-08 14:21:37,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 14:21:37,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2025-02-08 14:21:37,433 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 2 letters. [2025-02-08 14:21:37,433 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:21:37,433 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 6 letters. Loop has 2 letters. [2025-02-08 14:21:37,434 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:21:37,434 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 4 letters. [2025-02-08 14:21:37,434 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:21:37,434 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 37 transitions. [2025-02-08 14:21:37,435 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-08 14:21:37,435 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 0 states and 0 transitions. [2025-02-08 14:21:37,435 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-02-08 14:21:37,435 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-02-08 14:21:37,435 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-02-08 14:21:37,435 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-08 14:21:37,435 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-08 14:21:37,435 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-08 14:21:37,436 INFO L432 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-08 14:21:37,436 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-02-08 14:21:37,436 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-02-08 14:21:37,436 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-08 14:21:37,436 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-02-08 14:21:37,442 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 08.02 02:21:37 BoogieIcfgContainer [2025-02-08 14:21:37,442 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-02-08 14:21:37,442 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 14:21:37,442 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 14:21:37,443 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 14:21:37,443 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:21:35" (3/4) ... [2025-02-08 14:21:37,445 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-08 14:21:37,445 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 14:21:37,446 INFO L158 Benchmark]: Toolchain (without parser) took 1955.63ms. Allocated memory is still 167.8MB. Free memory was 124.4MB in the beginning and 91.3MB in the end (delta: 33.1MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. [2025-02-08 14:21:37,446 INFO L158 Benchmark]: CDTParser took 0.82ms. Allocated memory is still 201.3MB. Free memory is still 116.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:21:37,446 INFO L158 Benchmark]: CACSL2BoogieTranslator took 134.71ms. Allocated memory is still 167.8MB. Free memory was 124.4MB in the beginning and 114.6MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:21:37,446 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.89ms. Allocated memory is still 167.8MB. Free memory was 114.6MB in the beginning and 113.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:21:37,446 INFO L158 Benchmark]: Boogie Preprocessor took 16.38ms. Allocated memory is still 167.8MB. Free memory was 113.6MB in the beginning and 112.7MB in the end (delta: 951.0kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:21:37,447 INFO L158 Benchmark]: IcfgBuilder took 173.11ms. Allocated memory is still 167.8MB. Free memory was 112.7MB in the beginning and 103.4MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:21:37,447 INFO L158 Benchmark]: BuchiAutomizer took 1602.03ms. Allocated memory is still 167.8MB. Free memory was 103.4MB in the beginning and 92.0MB in the end (delta: 11.4MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. [2025-02-08 14:21:37,447 INFO L158 Benchmark]: Witness Printer took 2.87ms. Allocated memory is still 167.8MB. Free memory was 92.0MB in the beginning and 91.3MB in the end (delta: 788.2kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:21:37,448 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.82ms. Allocated memory is still 201.3MB. Free memory is still 116.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 134.71ms. Allocated memory is still 167.8MB. Free memory was 124.4MB in the beginning and 114.6MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 19.89ms. Allocated memory is still 167.8MB. Free memory was 114.6MB in the beginning and 113.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 16.38ms. Allocated memory is still 167.8MB. Free memory was 113.6MB in the beginning and 112.7MB in the end (delta: 951.0kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 173.11ms. Allocated memory is still 167.8MB. Free memory was 112.7MB in the beginning and 103.4MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1602.03ms. Allocated memory is still 167.8MB. Free memory was 103.4MB in the beginning and 92.0MB in the end (delta: 11.4MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. * Witness Printer took 2.87ms. Allocated memory is still 167.8MB. Free memory was 92.0MB in the beginning and 91.3MB in the end (delta: 788.2kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (0 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function (z + ((long) -1 * x)) and consists of 3 locations. One deterministic module has affine ranking function (4294967291 + ((long) -2 * x)) and consists of 4 locations. One deterministic module has affine ranking function (4294967291 + ((long) -2 * z)) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.5s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 1.2s. 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, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 23 IncrementalHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 7 mSDtfsCounter, 23 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax162 hnf100 lsp61 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq131 hnf96 smp100 dnf100 smp100 tf108 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 31ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-02-08 14:21:37,457 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2025-02-08 14:21:37,657 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2025-02-08 14:21:37,859 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE