./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loop-invgen/fragtest_simple.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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/loop-invgen/fragtest_simple.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-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 32bit --witnessprinter.graph.data.programhash be3b53cc5f9badbf5402cafcfa5766831674eb009261bc7c1bcbe9580aece38e --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 14:39:31,578 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 14:39:31,667 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2025-02-08 14:39:31,673 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 14:39:31,674 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 14:39:31,674 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-02-08 14:39:31,699 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 14:39:31,701 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 14:39:31,701 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 14:39:31,702 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 14:39:31,703 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 14:39:31,703 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 14:39:31,703 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 14:39:31,704 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 14:39:31,704 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-02-08 14:39:31,704 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-02-08 14:39:31,704 INFO L153 SettingsManager]: * Use old map elimination=false [2025-02-08 14:39:31,704 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-02-08 14:39:31,705 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-02-08 14:39:31,705 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-02-08 14:39:31,705 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 14:39:31,705 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-02-08 14:39:31,705 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 14:39:31,705 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 14:39:31,705 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 14:39:31,705 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 14:39:31,705 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-02-08 14:39:31,705 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-02-08 14:39:31,706 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-02-08 14:39:31,706 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 14:39:31,706 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 14:39:31,706 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 14:39:31,707 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-02-08 14:39:31,707 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 14:39:31,707 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 14:39:31,707 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 14:39:31,707 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 14:39:31,707 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 14:39:31,707 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 14:39:31,708 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-02-08 14:39:31,708 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be3b53cc5f9badbf5402cafcfa5766831674eb009261bc7c1bcbe9580aece38e [2025-02-08 14:39:32,001 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 14:39:32,011 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 14:39:32,015 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 14:39:32,018 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 14:39:32,018 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 14:39:32,019 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-invgen/fragtest_simple.i [2025-02-08 14:39:33,354 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ba3006090/a1a89b3955664297b433fe0cd2e3ac39/FLAG61000e67d [2025-02-08 14:39:33,599 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 14:39:33,600 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/loop-invgen/fragtest_simple.i [2025-02-08 14:39:33,606 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ba3006090/a1a89b3955664297b433fe0cd2e3ac39/FLAG61000e67d [2025-02-08 14:39:33,621 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ba3006090/a1a89b3955664297b433fe0cd2e3ac39 [2025-02-08 14:39:33,624 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 14:39:33,625 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 14:39:33,628 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 14:39:33,628 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 14:39:33,631 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 14:39:33,632 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:39:33" (1/1) ... [2025-02-08 14:39:33,632 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36715a93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:39:33, skipping insertion in model container [2025-02-08 14:39:33,632 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:39:33" (1/1) ... [2025-02-08 14:39:33,646 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 14:39:33,772 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:39:33,780 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 14:39:33,792 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:39:33,807 INFO L204 MainTranslator]: Completed translation [2025-02-08 14:39:33,808 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:39:33 WrapperNode [2025-02-08 14:39:33,808 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 14:39:33,809 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 14:39:33,809 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 14:39:33,809 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 14:39:33,817 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:39:33" (1/1) ... [2025-02-08 14:39:33,822 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:39:33" (1/1) ... [2025-02-08 14:39:33,837 INFO L138 Inliner]: procedures = 16, calls = 8, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 55 [2025-02-08 14:39:33,840 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 14:39:33,841 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 14:39:33,841 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 14:39:33,842 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 14:39:33,848 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:39:33" (1/1) ... [2025-02-08 14:39:33,848 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:39:33" (1/1) ... [2025-02-08 14:39:33,849 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:39:33" (1/1) ... [2025-02-08 14:39:33,856 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-02-08 14:39:33,857 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:39:33" (1/1) ... [2025-02-08 14:39:33,857 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:39:33" (1/1) ... [2025-02-08 14:39:33,860 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:39:33" (1/1) ... [2025-02-08 14:39:33,860 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:39:33" (1/1) ... [2025-02-08 14:39:33,861 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:39:33" (1/1) ... [2025-02-08 14:39:33,862 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:39:33" (1/1) ... [2025-02-08 14:39:33,863 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 14:39:33,863 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 14:39:33,864 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 14:39:33,864 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 14:39:33,865 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:39:33" (1/1) ... [2025-02-08 14:39:33,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:39:33,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:39:33,895 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 14:39:33,897 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 14:39:33,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 14:39:33,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 14:39:33,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 14:39:33,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 14:39:33,965 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 14:39:33,967 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 14:39:34,080 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L50: assume main_~j~0#1 >= main_~n~0#1; [2025-02-08 14:39:34,080 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L50: assume !(main_~j~0#1 >= main_~n~0#1); [2025-02-08 14:39:34,080 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L46: havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;main_~k~0#1 := main_~k~0#1 - 1;main_~i~0#1 := main_~i~0#1 - 1;main_~j~0#1 := 1 + main_~j~0#1; [2025-02-08 14:39:34,086 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2025-02-08 14:39:34,086 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 14:39:34,099 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 14:39:34,099 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 14:39:34,100 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:39:34 BoogieIcfgContainer [2025-02-08 14:39:34,100 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 14:39:34,101 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-02-08 14:39:34,101 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-02-08 14:39:34,107 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-02-08 14:39:34,107 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-08 14:39:34,107 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 08.02 02:39:33" (1/3) ... [2025-02-08 14:39:34,109 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@66b45f10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.02 02:39:34, skipping insertion in model container [2025-02-08 14:39:34,110 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-08 14:39:34,110 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:39:33" (2/3) ... [2025-02-08 14:39:34,110 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@66b45f10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.02 02:39:34, skipping insertion in model container [2025-02-08 14:39:34,110 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-08 14:39:34,110 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:39:34" (3/3) ... [2025-02-08 14:39:34,112 INFO L363 chiAutomizerObserver]: Analyzing ICFG fragtest_simple.i [2025-02-08 14:39:34,172 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-02-08 14:39:34,172 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-02-08 14:39:34,173 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-02-08 14:39:34,173 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-02-08 14:39:34,173 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-02-08 14:39:34,174 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-02-08 14:39:34,174 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-02-08 14:39:34,174 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-02-08 14:39:34,181 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 15 states have internal predecessors, (22), 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 14:39:34,195 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2025-02-08 14:39:34,195 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-08 14:39:34,195 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-08 14:39:34,199 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2025-02-08 14:39:34,200 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-08 14:39:34,200 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-02-08 14:39:34,200 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 15 states have internal predecessors, (22), 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 14:39:34,202 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2025-02-08 14:39:34,203 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-08 14:39:34,203 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-08 14:39:34,204 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2025-02-08 14:39:34,204 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-08 14:39:34,208 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_~i~0#1, main_~pvlen~0#1, main_~tmp___1~0#1, main_~k~0#1, main_~n~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~pvlen~0#1;havoc main_~tmp___1~0#1;main_~k~0#1 := 0;havoc main_~n~0#1;main_~i~0#1 := 0;havoc main_#t~nondet1#1;main_~pvlen~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" [2025-02-08 14:39:34,209 INFO L754 eck$LassoCheckResult]: Loop: "assume true;havoc main_#t~nondet2#1;" "assume 0 != main_#t~nondet2#1 && main_~i~0#1 <= 1000000;havoc main_#t~nondet2#1;main_~i~0#1 := 1 + main_~i~0#1;" [2025-02-08 14:39:34,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:39:34,214 INFO L85 PathProgramCache]: Analyzing trace with hash 59, now seen corresponding path program 1 times [2025-02-08 14:39:34,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:39:34,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314290191] [2025-02-08 14:39:34,224 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:39:34,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:39:34,288 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-08 14:39:34,302 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-08 14:39:34,302 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:39:34,302 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:39:34,303 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:39:34,308 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-08 14:39:34,314 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-08 14:39:34,314 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:39:34,314 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:39:34,334 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:39:34,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:39:34,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1792, now seen corresponding path program 1 times [2025-02-08 14:39:34,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:39:34,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587762838] [2025-02-08 14:39:34,338 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:39:34,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:39:34,344 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 14:39:34,351 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 14:39:34,351 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:39:34,351 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:39:34,351 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:39:34,354 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 14:39:34,357 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 14:39:34,358 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:39:34,358 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:39:34,359 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:39:34,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:39:34,362 INFO L85 PathProgramCache]: Analyzing trace with hash 57530, now seen corresponding path program 1 times [2025-02-08 14:39:34,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:39:34,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979465552] [2025-02-08 14:39:34,363 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:39:34,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:39:34,371 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 14:39:34,376 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 14:39:34,377 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:39:34,377 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:39:34,378 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:39:34,381 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 14:39:34,385 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 14:39:34,385 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:39:34,385 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:39:34,388 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:39:34,472 INFO L204 LassoAnalysis]: Preferences: [2025-02-08 14:39:34,473 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-08 14:39:34,473 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-08 14:39:34,473 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-08 14:39:34,473 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-08 14:39:34,473 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:39:34,474 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-08 14:39:34,474 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-08 14:39:34,474 INFO L132 ssoRankerPreferences]: Filename of dumped script: fragtest_simple.i_Iteration1_Loop [2025-02-08 14:39:34,474 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-08 14:39:34,474 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-08 14:39:34,487 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:39:34,500 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:39:34,544 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-08 14:39:34,544 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-08 14:39:34,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:39:34,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:39:34,550 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 14:39:34,551 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 14:39:34,552 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-08 14:39:34,552 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:39:34,572 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 14:39:34,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:39:34,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:39:34,575 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 14:39:34,576 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 14:39:34,577 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-08 14:39:34,577 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:39:34,603 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-08 14:39:34,608 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2025-02-08 14:39:34,608 INFO L204 LassoAnalysis]: Preferences: [2025-02-08 14:39:34,608 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-08 14:39:34,608 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-08 14:39:34,608 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-08 14:39:34,608 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-08 14:39:34,608 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:39:34,608 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-08 14:39:34,608 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-08 14:39:34,608 INFO L132 ssoRankerPreferences]: Filename of dumped script: fragtest_simple.i_Iteration1_Loop [2025-02-08 14:39:34,608 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-08 14:39:34,608 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-08 14:39:34,609 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:39:34,617 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:39:34,642 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-08 14:39:34,645 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-08 14:39:34,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:39:34,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:39:34,648 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 14:39:34,651 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 14:39:34,652 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 14:39:34,667 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:39:34,667 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-08 14:39:34,667 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:39:34,667 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:39:34,667 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:39:34,673 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-08 14:39:34,673 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-08 14:39:34,676 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-08 14:39:34,685 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-08 14:39:34,688 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-08 14:39:34,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:39:34,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:39:34,695 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 14:39:34,698 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 14:39:34,699 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-08 14:39:34,699 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-08 14:39:34,700 INFO L474 LassoAnalysis]: Proved termination. [2025-02-08 14:39:34,700 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 2000001 Supporting invariants [] [2025-02-08 14:39:34,706 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 14:39:34,709 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-08 14:39:34,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:39:34,759 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-08 14:39:34,765 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-08 14:39:34,765 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:39:34,765 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:39:34,767 INFO L256 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-08 14:39:34,768 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:39:34,777 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 14:39:34,780 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 14:39:34,780 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:39:34,780 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:39:34,780 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 14:39:34,781 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:39:34,793 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 14:39:34,817 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 14:39:34,821 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 16 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 15 states have internal predecessors, (22), 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 14:39:34,874 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 16 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 15 states have internal predecessors, (22), 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 32 states and 44 transitions. Complement of second has 6 states. [2025-02-08 14:39:34,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-02-08 14:39:34,883 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 14:39:34,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2025-02-08 14:39:34,892 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 1 letters. Loop has 2 letters. [2025-02-08 14:39:34,892 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:39:34,893 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 3 letters. Loop has 2 letters. [2025-02-08 14:39:34,893 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:39:34,893 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 1 letters. Loop has 4 letters. [2025-02-08 14:39:34,893 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:39:34,893 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 44 transitions. [2025-02-08 14:39:34,895 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2025-02-08 14:39:34,900 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 9 states and 12 transitions. [2025-02-08 14:39:34,901 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2025-02-08 14:39:34,901 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2025-02-08 14:39:34,901 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2025-02-08 14:39:34,902 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-08 14:39:34,902 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2025-02-08 14:39:34,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2025-02-08 14:39:34,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2025-02-08 14:39:34,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 states have internal predecessors, (12), 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 14:39:34,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 12 transitions. [2025-02-08 14:39:34,928 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2025-02-08 14:39:34,929 INFO L432 stractBuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2025-02-08 14:39:34,929 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-02-08 14:39:34,929 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 12 transitions. [2025-02-08 14:39:34,929 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2025-02-08 14:39:34,929 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-08 14:39:34,929 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-08 14:39:34,930 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-02-08 14:39:34,930 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-08 14:39:34,930 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_~i~0#1, main_~pvlen~0#1, main_~tmp___1~0#1, main_~k~0#1, main_~n~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~pvlen~0#1;havoc main_~tmp___1~0#1;main_~k~0#1 := 0;havoc main_~n~0#1;main_~i~0#1 := 0;havoc main_#t~nondet1#1;main_~pvlen~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume true;havoc main_#t~nondet2#1;" "assume !(0 != main_#t~nondet2#1 && main_~i~0#1 <= 1000000);havoc main_#t~nondet2#1;" "assume !(main_~i~0#1 > main_~pvlen~0#1);" "main_~i~0#1 := 0;" [2025-02-08 14:39:34,930 INFO L754 eck$LassoCheckResult]: Loop: "assume true;havoc main_#t~nondet3#1;" "assume 0 != main_#t~nondet3#1 && main_~i~0#1 <= 1000000;havoc main_#t~nondet3#1;main_~tmp___1~0#1 := main_~i~0#1;main_~i~0#1 := 1 + main_~i~0#1;main_~k~0#1 := 1 + main_~k~0#1;" [2025-02-08 14:39:34,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:39:34,932 INFO L85 PathProgramCache]: Analyzing trace with hash 55286039, now seen corresponding path program 1 times [2025-02-08 14:39:34,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:39:34,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146007834] [2025-02-08 14:39:34,933 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:39:34,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:39:34,938 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-08 14:39:34,945 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-08 14:39:34,945 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:39:34,945 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:39:34,946 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:39:34,947 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-08 14:39:34,951 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-08 14:39:34,952 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:39:34,952 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:39:34,958 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:39:34,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:39:34,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1504, now seen corresponding path program 1 times [2025-02-08 14:39:34,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:39:34,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376917923] [2025-02-08 14:39:34,961 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:39:34,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:39:34,966 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 14:39:34,969 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 14:39:34,970 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:39:34,970 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:39:34,970 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:39:34,972 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 14:39:34,975 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 14:39:34,976 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:39:34,976 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:39:34,979 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:39:34,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:39:34,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1590276470, now seen corresponding path program 1 times [2025-02-08 14:39:34,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:39:34,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278260958] [2025-02-08 14:39:34,981 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:39:34,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:39:34,986 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 14:39:34,998 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 14:39:34,998 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:39:34,998 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:39:35,000 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:39:35,002 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 14:39:35,010 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 14:39:35,011 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:39:35,011 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:39:35,013 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:39:35,056 INFO L204 LassoAnalysis]: Preferences: [2025-02-08 14:39:35,056 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-08 14:39:35,057 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-08 14:39:35,057 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-08 14:39:35,057 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-08 14:39:35,057 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:39:35,057 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-08 14:39:35,057 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-08 14:39:35,057 INFO L132 ssoRankerPreferences]: Filename of dumped script: fragtest_simple.i_Iteration2_Loop [2025-02-08 14:39:35,057 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-08 14:39:35,057 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-08 14:39:35,058 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:39:35,065 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:39:35,074 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:39:35,108 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-08 14:39:35,109 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-08 14:39:35,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:39:35,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:39:35,113 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 14:39:35,114 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 14:39:35,115 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-08 14:39:35,115 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:39:35,136 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2025-02-08 14:39:35,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:39:35,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:39:35,139 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 14:39:35,144 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 14:39:35,144 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-08 14:39:35,145 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:39:35,174 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-08 14:39:35,174 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~k~0#1=0} Honda state: {ULTIMATE.start_main_~k~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~k~0#1=-1}, {ULTIMATE.start_main_~k~0#1=5}, {ULTIMATE.start_main_~k~0#1=-3}] Lambdas: [6, 1, 1] Nus: [1, 0] [2025-02-08 14:39:35,180 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 14:39:35,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:39:35,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:39:35,182 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 14:39:35,184 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 14:39:35,185 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-08 14:39:35,185 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:39:35,201 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2025-02-08 14:39:35,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:39:35,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:39:35,204 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 14:39:35,205 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 14:39:35,206 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-08 14:39:35,206 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-08 14:39:35,236 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-08 14:39:35,241 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 14:39:35,241 INFO L204 LassoAnalysis]: Preferences: [2025-02-08 14:39:35,241 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-08 14:39:35,241 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-08 14:39:35,241 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-08 14:39:35,241 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-08 14:39:35,241 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:39:35,241 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-08 14:39:35,242 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-08 14:39:35,242 INFO L132 ssoRankerPreferences]: Filename of dumped script: fragtest_simple.i_Iteration2_Loop [2025-02-08 14:39:35,242 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-08 14:39:35,242 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-08 14:39:35,243 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:39:35,250 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:39:35,258 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-08 14:39:35,314 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 14:39:35,320 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-08 14:39:35,320 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-08 14:39:35,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:39:35,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:39:35,325 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 14:39:35,326 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 14:39:35,327 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 14:39:35,337 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:39:35,337 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-08 14:39:35,337 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:39:35,338 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:39:35,338 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:39:35,338 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-08 14:39:35,339 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-08 14:39:35,344 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-08 14:39:35,351 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 14:39:35,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:39:35,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:39:35,355 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 14:39:35,357 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 14:39:35,358 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 14:39:35,369 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-08 14:39:35,369 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-08 14:39:35,369 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-08 14:39:35,369 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-08 14:39:35,369 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-08 14:39:35,370 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-08 14:39:35,370 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-08 14:39:35,373 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-08 14:39:35,376 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-08 14:39:35,376 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-08 14:39:35,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-08 14:39:35,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:39:35,379 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 14:39:35,380 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 14:39:35,381 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-08 14:39:35,381 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-08 14:39:35,381 INFO L474 LassoAnalysis]: Proved termination. [2025-02-08 14:39:35,381 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 2000001 Supporting invariants [] [2025-02-08 14:39:35,386 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 14:39:35,388 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-08 14:39:35,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:39:35,411 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-08 14:39:35,418 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-08 14:39:35,418 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:39:35,418 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:39:35,419 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-08 14:39:35,419 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:39:35,433 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 14:39:35,436 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 14:39:35,436 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:39:35,436 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:39:35,437 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 14:39:35,437 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:39:35,441 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 14:39:35,442 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 14:39:35,442 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 12 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:39:35,452 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 12 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 11 states and 15 transitions. Complement of second has 4 states. [2025-02-08 14:39:35,454 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 14:39:35,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:39:35,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2025-02-08 14:39:35,455 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 2 letters. [2025-02-08 14:39:35,456 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:39:35,456 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 2 letters. [2025-02-08 14:39:35,456 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:39:35,456 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 4 letters. [2025-02-08 14:39:35,456 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-08 14:39:35,456 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 15 transitions. [2025-02-08 14:39:35,457 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-08 14:39:35,457 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2025-02-08 14:39:35,457 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-02-08 14:39:35,457 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-02-08 14:39:35,457 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-02-08 14:39:35,457 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-08 14:39:35,457 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-08 14:39:35,457 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-08 14:39:35,457 INFO L432 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-08 14:39:35,457 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-02-08 14:39:35,457 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-02-08 14:39:35,457 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-08 14:39:35,457 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-02-08 14:39:35,468 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 08.02 02:39:35 BoogieIcfgContainer [2025-02-08 14:39:35,468 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-02-08 14:39:35,468 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 14:39:35,468 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 14:39:35,468 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 14:39:35,470 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:39:34" (3/4) ... [2025-02-08 14:39:35,472 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-08 14:39:35,472 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 14:39:35,473 INFO L158 Benchmark]: Toolchain (without parser) took 1847.94ms. Allocated memory is still 142.6MB. Free memory was 112.7MB in the beginning and 100.5MB in the end (delta: 12.3MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. [2025-02-08 14:39:35,474 INFO L158 Benchmark]: CDTParser took 1.23ms. Allocated memory is still 201.3MB. Free memory is still 123.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:39:35,474 INFO L158 Benchmark]: CACSL2BoogieTranslator took 181.17ms. Allocated memory is still 142.6MB. Free memory was 112.7MB in the beginning and 101.7MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:39:35,475 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.56ms. Allocated memory is still 142.6MB. Free memory was 101.7MB in the beginning and 100.8MB in the end (delta: 979.9kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:39:35,475 INFO L158 Benchmark]: Boogie Preprocessor took 21.58ms. Allocated memory is still 142.6MB. Free memory was 100.8MB in the beginning and 99.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:39:35,475 INFO L158 Benchmark]: IcfgBuilder took 236.38ms. Allocated memory is still 142.6MB. Free memory was 99.7MB in the beginning and 88.4MB in the end (delta: 11.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 14:39:35,475 INFO L158 Benchmark]: BuchiAutomizer took 1367.19ms. Allocated memory is still 142.6MB. Free memory was 88.4MB in the beginning and 100.5MB in the end (delta: -12.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:39:35,475 INFO L158 Benchmark]: Witness Printer took 4.28ms. Allocated memory is still 142.6MB. Free memory was 100.5MB in the beginning and 100.5MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:39:35,478 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.23ms. Allocated memory is still 201.3MB. Free memory is still 123.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 181.17ms. Allocated memory is still 142.6MB. Free memory was 112.7MB in the beginning and 101.7MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.56ms. Allocated memory is still 142.6MB. Free memory was 101.7MB in the beginning and 100.8MB in the end (delta: 979.9kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.58ms. Allocated memory is still 142.6MB. Free memory was 100.8MB in the beginning and 99.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 236.38ms. Allocated memory is still 142.6MB. Free memory was 99.7MB in the beginning and 88.4MB in the end (delta: 11.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 1367.19ms. Allocated memory is still 142.6MB. Free memory was 88.4MB in the beginning and 100.5MB in the end (delta: -12.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.28ms. Allocated memory is still 142.6MB. Free memory was 100.5MB in the beginning and 100.5MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function (((long long) -2 * i) + 2000001) and consists of 4 locations. One deterministic module has affine ranking function (((long long) -2 * i) + 2000001) and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 0.9s. 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 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 10 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax100 hnf100 lsp83 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 54ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-02-08 14:39:35,492 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 14:39:35,694 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE