./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loop-simple/nested_3.c --full-output --architecture 32bit


--------------------------------------------------------------------------------


Checking for termination
Using default analysis
Version 8fc3dc66
Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/loop-simple/nested_3.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6a30debb45adf4eb2040807436dec0136066a492a6c11eb0dbebd1f179f328d9
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-8fc3dc6-m
[2025-03-17 20:22:38,489 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-03-17 20:22:38,537 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf
[2025-03-17 20:22:38,540 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-03-17 20:22:38,540 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-03-17 20:22:38,540 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG
[2025-03-17 20:22:38,562 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-03-17 20:22:38,563 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-03-17 20:22:38,563 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-03-17 20:22:38,563 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2025-03-17 20:22:38,564 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2025-03-17 20:22:38,564 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-03-17 20:22:38,564 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-03-17 20:22:38,564 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-03-17 20:22:38,564 INFO  L151        SettingsManager]: Preferences of BuchiAutomizer differ from their defaults:
[2025-03-17 20:22:38,565 INFO  L153        SettingsManager]:  * NCSB implementation=INTSET_LAZY3
[2025-03-17 20:22:38,565 INFO  L153        SettingsManager]:  * Use old map elimination=false
[2025-03-17 20:22:38,565 INFO  L153        SettingsManager]:  * Use external solver (rank synthesis)=false
[2025-03-17 20:22:38,565 INFO  L153        SettingsManager]:  * Use only trivial implications for array writes=true
[2025-03-17 20:22:38,565 INFO  L153        SettingsManager]:  * Rank analysis=LINEAR_WITH_GUESSES
[2025-03-17 20:22:38,565 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2025-03-17 20:22:38,565 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=ASSUME
[2025-03-17 20:22:38,565 INFO  L153        SettingsManager]:  * sizeof long=4
[2025-03-17 20:22:38,565 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2025-03-17 20:22:38,565 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2025-03-17 20:22:38,565 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2025-03-17 20:22:38,565 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=ASSUME
[2025-03-17 20:22:38,565 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=ASSUME
[2025-03-17 20:22:38,565 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=ASSUME
[2025-03-17 20:22:38,565 INFO  L153        SettingsManager]:  * Check unreachability of reach_error function=false
[2025-03-17 20:22:38,565 INFO  L153        SettingsManager]:  * sizeof long double=12
[2025-03-17 20:22:38,565 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2025-03-17 20:22:38,565 INFO  L153        SettingsManager]:  * Assume nondeterminstic values are in range=false
[2025-03-17 20:22:38,565 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2025-03-17 20:22:38,565 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2025-03-17 20:22:38,565 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2025-03-17 20:22:38,565 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-03-17 20:22:38,565 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-03-17 20:22:38,566 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-03-17 20:22:38,566 INFO  L151        SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2025-03-17 20:22:38,566 INFO  L153        SettingsManager]:  * TransformationType=MODULO_NEIGHBOR
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a30debb45adf4eb2040807436dec0136066a492a6c11eb0dbebd1f179f328d9
[2025-03-17 20:22:38,758 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-03-17 20:22:38,764 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-03-17 20:22:38,765 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-03-17 20:22:38,766 INFO  L270        PluginConnector]: Initializing CDTParser...
[2025-03-17 20:22:38,766 INFO  L274        PluginConnector]: CDTParser initialized
[2025-03-17 20:22:38,766 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-simple/nested_3.c
[2025-03-17 20:22:39,844 INFO  L533              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eef9335b3/56047e463b424600bca9b96f9d20c1a0/FLAG98d86517c
[2025-03-17 20:22:40,054 INFO  L384              CDTParser]: Found 1 translation units.
[2025-03-17 20:22:40,054 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-simple/nested_3.c
[2025-03-17 20:22:40,060 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eef9335b3/56047e463b424600bca9b96f9d20c1a0/FLAG98d86517c
[2025-03-17 20:22:40,428 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eef9335b3/56047e463b424600bca9b96f9d20c1a0
[2025-03-17 20:22:40,429 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-03-17 20:22:40,430 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2025-03-17 20:22:40,431 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2025-03-17 20:22:40,431 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2025-03-17 20:22:40,434 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2025-03-17 20:22:40,434 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 08:22:40" (1/1) ...
[2025-03-17 20:22:40,436 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a5ebe81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:22:40, skipping insertion in model container
[2025-03-17 20:22:40,436 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 08:22:40" (1/1) ...
[2025-03-17 20:22:40,445 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2025-03-17 20:22:40,536 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-03-17 20:22:40,543 INFO  L200         MainTranslator]: Completed pre-run
[2025-03-17 20:22:40,551 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-03-17 20:22:40,560 INFO  L204         MainTranslator]: Completed translation
[2025-03-17 20:22:40,560 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:22:40 WrapperNode
[2025-03-17 20:22:40,560 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2025-03-17 20:22:40,561 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2025-03-17 20:22:40,561 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2025-03-17 20:22:40,561 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2025-03-17 20:22:40,565 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:22:40" (1/1) ...
[2025-03-17 20:22:40,568 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:22:40" (1/1) ...
[2025-03-17 20:22:40,577 INFO  L138                Inliner]: procedures = 10, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 32
[2025-03-17 20:22:40,577 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2025-03-17 20:22:40,577 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-03-17 20:22:40,577 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-03-17 20:22:40,578 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-03-17 20:22:40,582 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:22:40" (1/1) ...
[2025-03-17 20:22:40,582 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:22:40" (1/1) ...
[2025-03-17 20:22:40,583 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:22:40" (1/1) ...
[2025-03-17 20:22:40,588 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2025-03-17 20:22:40,589 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:22:40" (1/1) ...
[2025-03-17 20:22:40,589 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:22:40" (1/1) ...
[2025-03-17 20:22:40,590 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:22:40" (1/1) ...
[2025-03-17 20:22:40,592 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:22:40" (1/1) ...
[2025-03-17 20:22:40,593 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:22:40" (1/1) ...
[2025-03-17 20:22:40,593 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:22:40" (1/1) ...
[2025-03-17 20:22:40,594 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-03-17 20:22:40,595 INFO  L112        PluginConnector]: ------------------------IcfgBuilder----------------------------
[2025-03-17 20:22:40,595 INFO  L270        PluginConnector]: Initializing IcfgBuilder...
[2025-03-17 20:22:40,595 INFO  L274        PluginConnector]: IcfgBuilder initialized
[2025-03-17 20:22:40,596 INFO  L184        PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:22:40" (1/1) ...
[2025-03-17 20:22:40,599 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-17 20:22:40,609 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-17 20:22:40,622 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2025-03-17 20:22:40,624 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process
[2025-03-17 20:22:40,640 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2025-03-17 20:22:40,640 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2025-03-17 20:22:40,640 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2025-03-17 20:22:40,640 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2025-03-17 20:22:40,678 INFO  L256             CfgBuilder]: Building ICFG
[2025-03-17 20:22:40,679 INFO  L286             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-03-17 20:22:40,751 INFO  L?                        ?]: Removed 5 outVars from TransFormulas that were not future-live.
[2025-03-17 20:22:40,751 INFO  L307             CfgBuilder]: Performing block encoding
[2025-03-17 20:22:40,756 INFO  L331             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2025-03-17 20:22:40,756 INFO  L336             CfgBuilder]: Removed 0 assume(true) statements.
[2025-03-17 20:22:40,757 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 08:22:40 BoogieIcfgContainer
[2025-03-17 20:22:40,757 INFO  L131        PluginConnector]: ------------------------ END IcfgBuilder----------------------------
[2025-03-17 20:22:40,757 INFO  L112        PluginConnector]: ------------------------BuchiAutomizer----------------------------
[2025-03-17 20:22:40,757 INFO  L270        PluginConnector]: Initializing BuchiAutomizer...
[2025-03-17 20:22:40,761 INFO  L274        PluginConnector]: BuchiAutomizer initialized
[2025-03-17 20:22:40,761 INFO  L99          BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2025-03-17 20:22:40,761 INFO  L184        PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.03 08:22:40" (1/3) ...
[2025-03-17 20:22:40,762 INFO  L204        PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1ebc77fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.03 08:22:40, skipping insertion in model container
[2025-03-17 20:22:40,762 INFO  L99          BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2025-03-17 20:22:40,762 INFO  L184        PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:22:40" (2/3) ...
[2025-03-17 20:22:40,762 INFO  L204        PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1ebc77fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.03 08:22:40, skipping insertion in model container
[2025-03-17 20:22:40,762 INFO  L99          BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2025-03-17 20:22:40,762 INFO  L184        PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 08:22:40" (3/3) ...
[2025-03-17 20:22:40,763 INFO  L363   chiAutomizerObserver]: Analyzing ICFG nested_3.c
[2025-03-17 20:22:40,795 INFO  L306   stractBuchiCegarLoop]: Interprodecural is true
[2025-03-17 20:22:40,795 INFO  L307   stractBuchiCegarLoop]: Hoare is None
[2025-03-17 20:22:40,795 INFO  L308   stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates
[2025-03-17 20:22:40,795 INFO  L309   stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE
[2025-03-17 20:22:40,795 INFO  L310   stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2025-03-17 20:22:40,795 INFO  L311   stractBuchiCegarLoop]: Difference is false
[2025-03-17 20:22:40,795 INFO  L312   stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA
[2025-03-17 20:22:40,796 INFO  L316   stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ========
[2025-03-17 20:22:40,799 INFO  L72            BuchiIsEmpty]: Start buchiIsEmpty. Operand  has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-17 20:22:40,809 INFO  L131   ngComponentsAnalysis]: Automaton has 1 accepting balls. 3
[2025-03-17 20:22:40,809 INFO  L87            BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2025-03-17 20:22:40,809 INFO  L119           BuchiIsEmpty]: Starting construction of run
[2025-03-17 20:22:40,813 INFO  L148   hiAutomatonCegarLoop]: Counterexample stem histogram [1]
[2025-03-17 20:22:40,813 INFO  L149   hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1]
[2025-03-17 20:22:40,813 INFO  L338   stractBuchiCegarLoop]: ======== Iteration 1 ============
[2025-03-17 20:22:40,813 INFO  L72            BuchiIsEmpty]: Start buchiIsEmpty. Operand  has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-17 20:22:40,814 INFO  L131   ngComponentsAnalysis]: Automaton has 1 accepting balls. 3
[2025-03-17 20:22:40,814 INFO  L87            BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2025-03-17 20:22:40,814 INFO  L119           BuchiIsEmpty]: Starting construction of run
[2025-03-17 20:22:40,815 INFO  L148   hiAutomatonCegarLoop]: Counterexample stem histogram [1]
[2025-03-17 20:22:40,815 INFO  L149   hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1]
[2025-03-17 20:22:40,820 INFO  L752   eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3);assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~pre4#1, main_#t~pre5#1, main_#t~pre6#1, main_~a~0#1, main_~b~0#1, main_~c~0#1;main_~a~0#1 := 6;main_~b~0#1 := 6;main_~c~0#1 := 6;main_~a~0#1 := 0;" 
[2025-03-17 20:22:40,820 INFO  L754   eck$LassoCheckResult]: Loop: "assume main_~a~0#1 < 6;main_~b~0#1 := 0;" "assume !(main_~b~0#1 < 6);main_#t~pre6#1 := 1 + main_~a~0#1;main_~a~0#1 := 1 + main_~a~0#1;havoc main_#t~pre6#1;" 
[2025-03-17 20:22:40,826 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-17 20:22:40,827 INFO  L85        PathProgramCache]: Analyzing trace with hash 40, now seen corresponding path program 1 times
[2025-03-17 20:22:40,832 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-17 20:22:40,832 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135869663]
[2025-03-17 20:22:40,832 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-17 20:22:40,833 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-17 20:22:40,878 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes.
[2025-03-17 20:22:40,888 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements.
[2025-03-17 20:22:40,889 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 20:22:40,889 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-17 20:22:40,890 INFO  L348             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2025-03-17 20:22:40,892 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes.
[2025-03-17 20:22:40,897 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements.
[2025-03-17 20:22:40,900 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 20:22:40,900 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-17 20:22:40,911 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2025-03-17 20:22:40,913 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-17 20:22:40,914 INFO  L85        PathProgramCache]: Analyzing trace with hash 1181, now seen corresponding path program 1 times
[2025-03-17 20:22:40,915 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-17 20:22:40,915 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046744930]
[2025-03-17 20:22:40,915 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-17 20:22:40,915 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-17 20:22:40,922 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes.
[2025-03-17 20:22:40,926 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements.
[2025-03-17 20:22:40,927 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 20:22:40,927 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-17 20:22:40,981 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-17 20:22:40,982 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-17 20:22:40,982 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046744930]
[2025-03-17 20:22:40,983 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046744930] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-17 20:22:40,983 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-17 20:22:40,984 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2025-03-17 20:22:40,984 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426333387]
[2025-03-17 20:22:40,984 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-17 20:22:40,987 INFO  L769   eck$LassoCheckResult]: loop already infeasible
[2025-03-17 20:22:40,987 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-17 20:22:41,007 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2025-03-17 20:22:41,007 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-03-17 20:22:41,009 INFO  L87              Difference]: Start difference. First operand  has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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)
[2025-03-17 20:22:41,036 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-17 20:22:41,037 INFO  L93              Difference]: Finished difference Result 10 states and 13 transitions.
[2025-03-17 20:22:41,037 INFO  L82        GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 13 transitions.
[2025-03-17 20:22:41,038 INFO  L131   ngComponentsAnalysis]: Automaton has 1 accepting balls. 5
[2025-03-17 20:22:41,042 INFO  L88        GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 6 states and 9 transitions.
[2025-03-17 20:22:41,043 INFO  L87         BuchiClosureNwa]: Accepting states before buchiClosure: 6
[2025-03-17 20:22:41,044 INFO  L106        BuchiClosureNwa]: Accepting states after buchiClosure: 6
[2025-03-17 20:22:41,044 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 6 states and 9 transitions.
[2025-03-17 20:22:41,045 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2025-03-17 20:22:41,045 INFO  L218   hiAutomatonCegarLoop]: Abstraction has 6 states and 9 transitions.
[2025-03-17 20:22:41,053 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6 states and 9 transitions.
[2025-03-17 20:22:41,060 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 5.
[2025-03-17 20:22:41,061 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 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)
[2025-03-17 20:22:41,061 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions.
[2025-03-17 20:22:41,062 INFO  L240   hiAutomatonCegarLoop]: Abstraction has 5 states and 7 transitions.
[2025-03-17 20:22:41,063 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2025-03-17 20:22:41,067 INFO  L432   stractBuchiCegarLoop]: Abstraction has 5 states and 7 transitions.
[2025-03-17 20:22:41,067 INFO  L338   stractBuchiCegarLoop]: ======== Iteration 2 ============
[2025-03-17 20:22:41,068 INFO  L72            BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 7 transitions.
[2025-03-17 20:22:41,068 INFO  L131   ngComponentsAnalysis]: Automaton has 1 accepting balls. 4
[2025-03-17 20:22:41,068 INFO  L87            BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2025-03-17 20:22:41,068 INFO  L119           BuchiIsEmpty]: Starting construction of run
[2025-03-17 20:22:41,069 INFO  L148   hiAutomatonCegarLoop]: Counterexample stem histogram [1]
[2025-03-17 20:22:41,069 INFO  L149   hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1]
[2025-03-17 20:22:41,069 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(11, 2);call #Ultimate.allocInit(12, 3);assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~pre4#1, main_#t~pre5#1, main_#t~pre6#1, main_~a~0#1, main_~b~0#1, main_~c~0#1;main_~a~0#1 := 6;main_~b~0#1 := 6;main_~c~0#1 := 6;main_~a~0#1 := 0;" 
[2025-03-17 20:22:41,069 INFO  L754   eck$LassoCheckResult]: Loop: "assume main_~a~0#1 < 6;main_~b~0#1 := 0;" "assume main_~b~0#1 < 6;main_~c~0#1 := 0;" "assume !(main_~c~0#1 < 6);main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1;" "assume !(main_~b~0#1 < 6);main_#t~pre6#1 := 1 + main_~a~0#1;main_~a~0#1 := 1 + main_~a~0#1;havoc main_#t~pre6#1;" 
[2025-03-17 20:22:41,070 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-17 20:22:41,070 INFO  L85        PathProgramCache]: Analyzing trace with hash 40, now seen corresponding path program 2 times
[2025-03-17 20:22:41,070 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-17 20:22:41,070 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982356347]
[2025-03-17 20:22:41,070 INFO  L95    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2025-03-17 20:22:41,071 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-17 20:22:41,076 INFO  L108    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 1 statements into 1 equivalence classes.
[2025-03-17 20:22:41,080 INFO  L111    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 1 of 1 statements.
[2025-03-17 20:22:41,080 INFO  L114    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2025-03-17 20:22:41,080 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-17 20:22:41,080 INFO  L348             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2025-03-17 20:22:41,081 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes.
[2025-03-17 20:22:41,085 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements.
[2025-03-17 20:22:41,087 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 20:22:41,087 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-17 20:22:41,089 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2025-03-17 20:22:41,089 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-17 20:22:41,089 INFO  L85        PathProgramCache]: Analyzing trace with hash 1137951, now seen corresponding path program 1 times
[2025-03-17 20:22:41,089 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-17 20:22:41,089 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030986843]
[2025-03-17 20:22:41,090 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-17 20:22:41,090 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-17 20:22:41,092 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes.
[2025-03-17 20:22:41,094 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements.
[2025-03-17 20:22:41,095 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 20:22:41,095 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-17 20:22:41,111 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-17 20:22:41,112 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-17 20:22:41,112 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030986843]
[2025-03-17 20:22:41,112 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030986843] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-17 20:22:41,112 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-17 20:22:41,112 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2025-03-17 20:22:41,112 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860361577]
[2025-03-17 20:22:41,112 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-17 20:22:41,112 INFO  L769   eck$LassoCheckResult]: loop already infeasible
[2025-03-17 20:22:41,112 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-17 20:22:41,113 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2025-03-17 20:22:41,113 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-03-17 20:22:41,113 INFO  L87              Difference]: Start difference. First operand 5 states and 7 transitions. cyclomatic complexity: 3 Second operand  has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-17 20:22:41,126 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-17 20:22:41,126 INFO  L93              Difference]: Finished difference Result 6 states and 8 transitions.
[2025-03-17 20:22:41,126 INFO  L82        GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 8 transitions.
[2025-03-17 20:22:41,127 INFO  L131   ngComponentsAnalysis]: Automaton has 1 accepting balls. 5
[2025-03-17 20:22:41,127 INFO  L88        GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 6 states and 8 transitions.
[2025-03-17 20:22:41,127 INFO  L87         BuchiClosureNwa]: Accepting states before buchiClosure: 6
[2025-03-17 20:22:41,127 INFO  L106        BuchiClosureNwa]: Accepting states after buchiClosure: 6
[2025-03-17 20:22:41,127 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 6 states and 8 transitions.
[2025-03-17 20:22:41,127 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2025-03-17 20:22:41,127 INFO  L218   hiAutomatonCegarLoop]: Abstraction has 6 states and 8 transitions.
[2025-03-17 20:22:41,127 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6 states and 8 transitions.
[2025-03-17 20:22:41,127 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6.
[2025-03-17 20:22:41,127 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-17 20:22:41,128 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions.
[2025-03-17 20:22:41,128 INFO  L240   hiAutomatonCegarLoop]: Abstraction has 6 states and 8 transitions.
[2025-03-17 20:22:41,128 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2025-03-17 20:22:41,129 INFO  L432   stractBuchiCegarLoop]: Abstraction has 6 states and 8 transitions.
[2025-03-17 20:22:41,129 INFO  L338   stractBuchiCegarLoop]: ======== Iteration 3 ============
[2025-03-17 20:22:41,129 INFO  L72            BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions.
[2025-03-17 20:22:41,129 INFO  L131   ngComponentsAnalysis]: Automaton has 1 accepting balls. 5
[2025-03-17 20:22:41,129 INFO  L87            BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2025-03-17 20:22:41,129 INFO  L119           BuchiIsEmpty]: Starting construction of run
[2025-03-17 20:22:41,129 INFO  L148   hiAutomatonCegarLoop]: Counterexample stem histogram [1]
[2025-03-17 20:22:41,129 INFO  L149   hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1]
[2025-03-17 20:22:41,129 INFO  L752   eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3);assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~pre4#1, main_#t~pre5#1, main_#t~pre6#1, main_~a~0#1, main_~b~0#1, main_~c~0#1;main_~a~0#1 := 6;main_~b~0#1 := 6;main_~c~0#1 := 6;main_~a~0#1 := 0;" 
[2025-03-17 20:22:41,129 INFO  L754   eck$LassoCheckResult]: Loop: "assume main_~a~0#1 < 6;main_~b~0#1 := 0;" "assume main_~b~0#1 < 6;main_~c~0#1 := 0;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume !(main_~c~0#1 < 6);main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1;" "assume !(main_~b~0#1 < 6);main_#t~pre6#1 := 1 + main_~a~0#1;main_~a~0#1 := 1 + main_~a~0#1;havoc main_#t~pre6#1;" 
[2025-03-17 20:22:41,130 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-17 20:22:41,130 INFO  L85        PathProgramCache]: Analyzing trace with hash 40, now seen corresponding path program 3 times
[2025-03-17 20:22:41,130 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-17 20:22:41,130 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915858357]
[2025-03-17 20:22:41,130 INFO  L95    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2025-03-17 20:22:41,130 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-17 20:22:41,133 INFO  L108    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 1 statements into 1 equivalence classes.
[2025-03-17 20:22:41,135 INFO  L111    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 1 of 1 statements.
[2025-03-17 20:22:41,135 INFO  L114    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s)
[2025-03-17 20:22:41,136 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-17 20:22:41,136 INFO  L348             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2025-03-17 20:22:41,137 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes.
[2025-03-17 20:22:41,139 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements.
[2025-03-17 20:22:41,139 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 20:22:41,139 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-17 20:22:41,144 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2025-03-17 20:22:41,145 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-17 20:22:41,145 INFO  L85        PathProgramCache]: Analyzing trace with hash 35277476, now seen corresponding path program 1 times
[2025-03-17 20:22:41,145 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-17 20:22:41,145 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150571284]
[2025-03-17 20:22:41,145 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-17 20:22:41,145 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-17 20:22:41,150 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes.
[2025-03-17 20:22:41,152 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements.
[2025-03-17 20:22:41,153 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 20:22:41,153 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-17 20:22:41,187 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-17 20:22:41,188 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-17 20:22:41,188 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150571284]
[2025-03-17 20:22:41,188 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150571284] provided 0 perfect and 1 imperfect interpolant sequences
[2025-03-17 20:22:41,188 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [304732303]
[2025-03-17 20:22:41,188 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-17 20:22:41,188 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-03-17 20:22:41,188 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-17 20:22:41,190 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2025-03-17 20:22:41,191 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2025-03-17 20:22:41,212 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes.
[2025-03-17 20:22:41,215 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements.
[2025-03-17 20:22:41,215 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 20:22:41,215 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-17 20:22:41,216 INFO  L256         TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 3 conjuncts are in the unsatisfiable core
[2025-03-17 20:22:41,217 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-17 20:22:41,245 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-17 20:22:41,245 INFO  L312         TraceCheckSpWp]: Computing backward predicates...
[2025-03-17 20:22:41,269 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-17 20:22:41,270 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [304732303] provided 0 perfect and 2 imperfect interpolant sequences
[2025-03-17 20:22:41,270 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2025-03-17 20:22:41,270 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6
[2025-03-17 20:22:41,270 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546049193]
[2025-03-17 20:22:41,270 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2025-03-17 20:22:41,270 INFO  L769   eck$LassoCheckResult]: loop already infeasible
[2025-03-17 20:22:41,270 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-17 20:22:41,270 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-03-17 20:22:41,270 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30
[2025-03-17 20:22:41,271 INFO  L87              Difference]: Start difference. First operand 6 states and 8 transitions. cyclomatic complexity: 3 Second operand  has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-17 20:22:41,283 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-17 20:22:41,283 INFO  L93              Difference]: Finished difference Result 9 states and 11 transitions.
[2025-03-17 20:22:41,283 INFO  L82        GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 11 transitions.
[2025-03-17 20:22:41,283 INFO  L131   ngComponentsAnalysis]: Automaton has 1 accepting balls. 8
[2025-03-17 20:22:41,283 INFO  L88        GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 9 states and 11 transitions.
[2025-03-17 20:22:41,283 INFO  L87         BuchiClosureNwa]: Accepting states before buchiClosure: 9
[2025-03-17 20:22:41,284 INFO  L106        BuchiClosureNwa]: Accepting states after buchiClosure: 9
[2025-03-17 20:22:41,284 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 9 states and 11 transitions.
[2025-03-17 20:22:41,284 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2025-03-17 20:22:41,284 INFO  L218   hiAutomatonCegarLoop]: Abstraction has 9 states and 11 transitions.
[2025-03-17 20:22:41,284 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9 states and 11 transitions.
[2025-03-17 20:22:41,284 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9.
[2025-03-17 20:22:41,284 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-17 20:22:41,284 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions.
[2025-03-17 20:22:41,284 INFO  L240   hiAutomatonCegarLoop]: Abstraction has 9 states and 11 transitions.
[2025-03-17 20:22:41,285 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-03-17 20:22:41,285 INFO  L432   stractBuchiCegarLoop]: Abstraction has 9 states and 11 transitions.
[2025-03-17 20:22:41,285 INFO  L338   stractBuchiCegarLoop]: ======== Iteration 4 ============
[2025-03-17 20:22:41,285 INFO  L72            BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 11 transitions.
[2025-03-17 20:22:41,286 INFO  L131   ngComponentsAnalysis]: Automaton has 1 accepting balls. 8
[2025-03-17 20:22:41,286 INFO  L87            BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2025-03-17 20:22:41,286 INFO  L119           BuchiIsEmpty]: Starting construction of run
[2025-03-17 20:22:41,286 INFO  L148   hiAutomatonCegarLoop]: Counterexample stem histogram [1]
[2025-03-17 20:22:41,286 INFO  L149   hiAutomatonCegarLoop]: Counterexample loop histogram [4, 1, 1, 1, 1]
[2025-03-17 20:22:41,286 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(11, 2);call #Ultimate.allocInit(12, 3);assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~pre4#1, main_#t~pre5#1, main_#t~pre6#1, main_~a~0#1, main_~b~0#1, main_~c~0#1;main_~a~0#1 := 6;main_~b~0#1 := 6;main_~c~0#1 := 6;main_~a~0#1 := 0;" 
[2025-03-17 20:22:41,286 INFO  L754   eck$LassoCheckResult]: Loop: "assume main_~a~0#1 < 6;main_~b~0#1 := 0;" "assume main_~b~0#1 < 6;main_~c~0#1 := 0;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume !(main_~c~0#1 < 6);main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1;" "assume !(main_~b~0#1 < 6);main_#t~pre6#1 := 1 + main_~a~0#1;main_~a~0#1 := 1 + main_~a~0#1;havoc main_#t~pre6#1;" 
[2025-03-17 20:22:41,286 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-17 20:22:41,286 INFO  L85        PathProgramCache]: Analyzing trace with hash 40, now seen corresponding path program 4 times
[2025-03-17 20:22:41,286 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-17 20:22:41,287 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552503972]
[2025-03-17 20:22:41,287 INFO  L95    rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2025-03-17 20:22:41,287 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-17 20:22:41,290 INFO  L108    AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 1 statements into 2 equivalence classes.
[2025-03-17 20:22:41,292 INFO  L111    AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 1 of 1 statements.
[2025-03-17 20:22:41,292 INFO  L114    AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s)
[2025-03-17 20:22:41,292 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-17 20:22:41,292 INFO  L348             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2025-03-17 20:22:41,293 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes.
[2025-03-17 20:22:41,294 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements.
[2025-03-17 20:22:41,294 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 20:22:41,294 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-17 20:22:41,295 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2025-03-17 20:22:41,295 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-17 20:22:41,295 INFO  L85        PathProgramCache]: Analyzing trace with hash -1314711969, now seen corresponding path program 2 times
[2025-03-17 20:22:41,295 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-17 20:22:41,295 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465501906]
[2025-03-17 20:22:41,295 INFO  L95    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2025-03-17 20:22:41,295 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-17 20:22:41,298 INFO  L108    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 8 statements into 2 equivalence classes.
[2025-03-17 20:22:41,302 INFO  L111    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 8 of 8 statements.
[2025-03-17 20:22:41,302 INFO  L114    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2025-03-17 20:22:41,302 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-17 20:22:41,338 INFO  L134       CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2025-03-17 20:22:41,338 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-17 20:22:41,339 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465501906]
[2025-03-17 20:22:41,339 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465501906] provided 0 perfect and 1 imperfect interpolant sequences
[2025-03-17 20:22:41,339 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [582884400]
[2025-03-17 20:22:41,339 INFO  L95    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2025-03-17 20:22:41,339 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-03-17 20:22:41,339 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-17 20:22:41,341 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2025-03-17 20:22:41,342 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2025-03-17 20:22:41,363 INFO  L108    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 8 statements into 2 equivalence classes.
[2025-03-17 20:22:41,370 INFO  L111    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 8 of 8 statements.
[2025-03-17 20:22:41,371 INFO  L114    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2025-03-17 20:22:41,371 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-17 20:22:41,371 INFO  L256         TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 6 conjuncts are in the unsatisfiable core
[2025-03-17 20:22:41,372 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-17 20:22:41,425 INFO  L134       CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-17 20:22:41,425 INFO  L312         TraceCheckSpWp]: Computing backward predicates...
[2025-03-17 20:22:41,482 INFO  L134       CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-17 20:22:41,482 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [582884400] provided 0 perfect and 2 imperfect interpolant sequences
[2025-03-17 20:22:41,482 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2025-03-17 20:22:41,482 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 7, 7] total 10
[2025-03-17 20:22:41,482 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582249970]
[2025-03-17 20:22:41,482 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2025-03-17 20:22:41,482 INFO  L769   eck$LassoCheckResult]: loop already infeasible
[2025-03-17 20:22:41,482 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-17 20:22:41,483 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2025-03-17 20:22:41,483 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90
[2025-03-17 20:22:41,483 INFO  L87              Difference]: Start difference. First operand 9 states and 11 transitions. cyclomatic complexity: 3 Second operand  has 10 states, 10 states have (on average 1.6) 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)
[2025-03-17 20:22:41,620 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-17 20:22:41,620 INFO  L93              Difference]: Finished difference Result 26 states and 30 transitions.
[2025-03-17 20:22:41,620 INFO  L82        GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 30 transitions.
[2025-03-17 20:22:41,621 INFO  L131   ngComponentsAnalysis]: Automaton has 1 accepting balls. 25
[2025-03-17 20:22:41,621 INFO  L88        GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 26 states and 30 transitions.
[2025-03-17 20:22:41,621 INFO  L87         BuchiClosureNwa]: Accepting states before buchiClosure: 26
[2025-03-17 20:22:41,622 INFO  L106        BuchiClosureNwa]: Accepting states after buchiClosure: 26
[2025-03-17 20:22:41,622 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 26 states and 30 transitions.
[2025-03-17 20:22:41,622 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2025-03-17 20:22:41,622 INFO  L218   hiAutomatonCegarLoop]: Abstraction has 26 states and 30 transitions.
[2025-03-17 20:22:41,622 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 26 states and 30 transitions.
[2025-03-17 20:22:41,623 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 19.
[2025-03-17 20:22:41,623 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 19 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 18 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)
[2025-03-17 20:22:41,623 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions.
[2025-03-17 20:22:41,623 INFO  L240   hiAutomatonCegarLoop]: Abstraction has 19 states and 22 transitions.
[2025-03-17 20:22:41,624 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. 
[2025-03-17 20:22:41,625 INFO  L432   stractBuchiCegarLoop]: Abstraction has 19 states and 22 transitions.
[2025-03-17 20:22:41,625 INFO  L338   stractBuchiCegarLoop]: ======== Iteration 5 ============
[2025-03-17 20:22:41,625 INFO  L72            BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 22 transitions.
[2025-03-17 20:22:41,626 INFO  L131   ngComponentsAnalysis]: Automaton has 1 accepting balls. 18
[2025-03-17 20:22:41,626 INFO  L87            BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2025-03-17 20:22:41,626 INFO  L119           BuchiIsEmpty]: Starting construction of run
[2025-03-17 20:22:41,627 INFO  L148   hiAutomatonCegarLoop]: Counterexample stem histogram [1]
[2025-03-17 20:22:41,627 INFO  L149   hiAutomatonCegarLoop]: Counterexample loop histogram [12, 2, 2, 1, 1]
[2025-03-17 20:22:41,627 INFO  L752   eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3);assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~pre4#1, main_#t~pre5#1, main_#t~pre6#1, main_~a~0#1, main_~b~0#1, main_~c~0#1;main_~a~0#1 := 6;main_~b~0#1 := 6;main_~c~0#1 := 6;main_~a~0#1 := 0;" 
[2025-03-17 20:22:41,627 INFO  L754   eck$LassoCheckResult]: Loop: "assume main_~a~0#1 < 6;main_~b~0#1 := 0;" "assume main_~b~0#1 < 6;main_~c~0#1 := 0;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume !(main_~c~0#1 < 6);main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1;" "assume main_~b~0#1 < 6;main_~c~0#1 := 0;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume !(main_~c~0#1 < 6);main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1;" "assume !(main_~b~0#1 < 6);main_#t~pre6#1 := 1 + main_~a~0#1;main_~a~0#1 := 1 + main_~a~0#1;havoc main_#t~pre6#1;" 
[2025-03-17 20:22:41,627 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-17 20:22:41,628 INFO  L85        PathProgramCache]: Analyzing trace with hash 40, now seen corresponding path program 5 times
[2025-03-17 20:22:41,628 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-17 20:22:41,628 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735850589]
[2025-03-17 20:22:41,628 INFO  L95    rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
[2025-03-17 20:22:41,628 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-17 20:22:41,632 INFO  L108    AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 1 statements into 1 equivalence classes.
[2025-03-17 20:22:41,635 INFO  L111    AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 1 of 1 statements.
[2025-03-17 20:22:41,635 INFO  L114    AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2025-03-17 20:22:41,635 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-17 20:22:41,635 INFO  L348             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2025-03-17 20:22:41,636 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes.
[2025-03-17 20:22:41,637 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements.
[2025-03-17 20:22:41,637 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 20:22:41,637 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-17 20:22:41,638 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2025-03-17 20:22:41,638 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-17 20:22:41,638 INFO  L85        PathProgramCache]: Analyzing trace with hash -1089509535, now seen corresponding path program 3 times
[2025-03-17 20:22:41,638 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-17 20:22:41,638 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815129574]
[2025-03-17 20:22:41,638 INFO  L95    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2025-03-17 20:22:41,638 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-17 20:22:41,641 INFO  L108    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 18 statements into 9 equivalence classes.
[2025-03-17 20:22:41,652 INFO  L111    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) and asserted 18 of 18 statements.
[2025-03-17 20:22:41,652 INFO  L114    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s)
[2025-03-17 20:22:41,652 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-17 20:22:41,717 INFO  L134       CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked.
[2025-03-17 20:22:41,718 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-17 20:22:41,718 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815129574]
[2025-03-17 20:22:41,718 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815129574] provided 0 perfect and 1 imperfect interpolant sequences
[2025-03-17 20:22:41,718 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1524660555]
[2025-03-17 20:22:41,718 INFO  L95    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2025-03-17 20:22:41,718 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-03-17 20:22:41,718 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-17 20:22:41,720 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2025-03-17 20:22:41,722 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2025-03-17 20:22:41,740 INFO  L108    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 18 statements into 9 equivalence classes.
[2025-03-17 20:22:41,748 INFO  L111    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) and asserted 18 of 18 statements.
[2025-03-17 20:22:41,749 INFO  L114    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s)
[2025-03-17 20:22:41,749 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-17 20:22:41,749 INFO  L256         TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 4 conjuncts are in the unsatisfiable core
[2025-03-17 20:22:41,750 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-17 20:22:41,775 INFO  L134       CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked.
[2025-03-17 20:22:41,775 INFO  L312         TraceCheckSpWp]: Computing backward predicates...
[2025-03-17 20:22:41,819 INFO  L134       CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked.
[2025-03-17 20:22:41,820 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1524660555] provided 0 perfect and 2 imperfect interpolant sequences
[2025-03-17 20:22:41,820 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2025-03-17 20:22:41,820 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6
[2025-03-17 20:22:41,820 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146488286]
[2025-03-17 20:22:41,820 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2025-03-17 20:22:41,820 INFO  L769   eck$LassoCheckResult]: loop already infeasible
[2025-03-17 20:22:41,820 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-17 20:22:41,820 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2025-03-17 20:22:41,820 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56
[2025-03-17 20:22:41,821 INFO  L87              Difference]: Start difference. First operand 19 states and 22 transitions. cyclomatic complexity: 4 Second operand  has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 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)
[2025-03-17 20:22:41,841 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-17 20:22:41,841 INFO  L93              Difference]: Finished difference Result 51 states and 58 transitions.
[2025-03-17 20:22:41,841 INFO  L82        GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 58 transitions.
[2025-03-17 20:22:41,842 INFO  L131   ngComponentsAnalysis]: Automaton has 1 accepting balls. 50
[2025-03-17 20:22:41,842 INFO  L88        GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 51 states and 58 transitions.
[2025-03-17 20:22:41,842 INFO  L87         BuchiClosureNwa]: Accepting states before buchiClosure: 51
[2025-03-17 20:22:41,842 INFO  L106        BuchiClosureNwa]: Accepting states after buchiClosure: 51
[2025-03-17 20:22:41,842 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 51 states and 58 transitions.
[2025-03-17 20:22:41,842 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2025-03-17 20:22:41,842 INFO  L218   hiAutomatonCegarLoop]: Abstraction has 51 states and 58 transitions.
[2025-03-17 20:22:41,842 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 51 states and 58 transitions.
[2025-03-17 20:22:41,858 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51.
[2025-03-17 20:22:41,859 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 51 states, 51 states have (on average 1.1372549019607843) internal successors, (58), 50 states have internal predecessors, (58), 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)
[2025-03-17 20:22:41,859 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 58 transitions.
[2025-03-17 20:22:41,859 INFO  L240   hiAutomatonCegarLoop]: Abstraction has 51 states and 58 transitions.
[2025-03-17 20:22:41,860 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2025-03-17 20:22:41,860 INFO  L432   stractBuchiCegarLoop]: Abstraction has 51 states and 58 transitions.
[2025-03-17 20:22:41,860 INFO  L338   stractBuchiCegarLoop]: ======== Iteration 6 ============
[2025-03-17 20:22:41,860 INFO  L72            BuchiIsEmpty]: Start buchiIsEmpty. Operand 51 states and 58 transitions.
[2025-03-17 20:22:41,861 INFO  L131   ngComponentsAnalysis]: Automaton has 1 accepting balls. 50
[2025-03-17 20:22:41,861 INFO  L87            BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2025-03-17 20:22:41,861 INFO  L119           BuchiIsEmpty]: Starting construction of run
[2025-03-17 20:22:41,861 INFO  L148   hiAutomatonCegarLoop]: Counterexample stem histogram [1]
[2025-03-17 20:22:41,861 INFO  L149   hiAutomatonCegarLoop]: Counterexample loop histogram [36, 6, 6, 1, 1]
[2025-03-17 20:22:41,861 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(11, 2);call #Ultimate.allocInit(12, 3);assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~pre4#1, main_#t~pre5#1, main_#t~pre6#1, main_~a~0#1, main_~b~0#1, main_~c~0#1;main_~a~0#1 := 6;main_~b~0#1 := 6;main_~c~0#1 := 6;main_~a~0#1 := 0;" 
[2025-03-17 20:22:41,861 INFO  L754   eck$LassoCheckResult]: Loop: "assume main_~a~0#1 < 6;main_~b~0#1 := 0;" "assume main_~b~0#1 < 6;main_~c~0#1 := 0;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume !(main_~c~0#1 < 6);main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1;" "assume main_~b~0#1 < 6;main_~c~0#1 := 0;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume !(main_~c~0#1 < 6);main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1;" "assume main_~b~0#1 < 6;main_~c~0#1 := 0;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume !(main_~c~0#1 < 6);main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1;" "assume main_~b~0#1 < 6;main_~c~0#1 := 0;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume !(main_~c~0#1 < 6);main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1;" "assume main_~b~0#1 < 6;main_~c~0#1 := 0;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume !(main_~c~0#1 < 6);main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1;" "assume main_~b~0#1 < 6;main_~c~0#1 := 0;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume !(main_~c~0#1 < 6);main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1;" "assume !(main_~b~0#1 < 6);main_#t~pre6#1 := 1 + main_~a~0#1;main_~a~0#1 := 1 + main_~a~0#1;havoc main_#t~pre6#1;" 
[2025-03-17 20:22:41,862 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-17 20:22:41,862 INFO  L85        PathProgramCache]: Analyzing trace with hash 40, now seen corresponding path program 6 times
[2025-03-17 20:22:41,862 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-17 20:22:41,862 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488969790]
[2025-03-17 20:22:41,862 INFO  L95    rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
[2025-03-17 20:22:41,862 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-17 20:22:41,866 INFO  L108    AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 1 statements into 1 equivalence classes.
[2025-03-17 20:22:41,867 INFO  L111    AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 1 of 1 statements.
[2025-03-17 20:22:41,867 INFO  L114    AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s)
[2025-03-17 20:22:41,867 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-17 20:22:41,867 INFO  L348             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2025-03-17 20:22:41,868 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes.
[2025-03-17 20:22:41,869 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements.
[2025-03-17 20:22:41,869 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 20:22:41,869 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-17 20:22:41,870 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2025-03-17 20:22:41,870 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-17 20:22:41,870 INFO  L85        PathProgramCache]: Analyzing trace with hash -77851415, now seen corresponding path program 4 times
[2025-03-17 20:22:41,870 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-17 20:22:41,870 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553820873]
[2025-03-17 20:22:41,870 INFO  L95    rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2025-03-17 20:22:41,870 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-17 20:22:41,876 INFO  L108    AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 50 statements into 2 equivalence classes.
[2025-03-17 20:22:41,889 INFO  L111    AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 50 of 50 statements.
[2025-03-17 20:22:41,889 INFO  L114    AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s)
[2025-03-17 20:22:41,889 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-17 20:22:41,889 INFO  L348             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2025-03-17 20:22:41,892 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes.
[2025-03-17 20:22:41,905 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements.
[2025-03-17 20:22:41,905 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 20:22:41,905 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-17 20:22:41,908 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2025-03-17 20:22:41,909 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-17 20:22:41,909 INFO  L85        PathProgramCache]: Analyzing trace with hash 1166908752, now seen corresponding path program 1 times
[2025-03-17 20:22:41,909 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-17 20:22:41,909 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654676142]
[2025-03-17 20:22:41,909 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-17 20:22:41,909 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-17 20:22:41,915 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-03-17 20:22:41,931 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-03-17 20:22:41,931 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 20:22:41,931 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-17 20:22:41,931 INFO  L348             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2025-03-17 20:22:41,934 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-03-17 20:22:41,948 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-03-17 20:22:41,948 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 20:22:41,948 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-17 20:22:41,953 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2025-03-17 20:22:42,593 INFO  L204          LassoAnalysis]: Preferences:
[2025-03-17 20:22:42,594 INFO  L125   ssoRankerPreferences]: Compute integeral hull: false
[2025-03-17 20:22:42,594 INFO  L126   ssoRankerPreferences]: Enable LassoPartitioneer: true
[2025-03-17 20:22:42,594 INFO  L127   ssoRankerPreferences]: Term annotations enabled: false
[2025-03-17 20:22:42,594 INFO  L128   ssoRankerPreferences]: Use exernal solver: true
[2025-03-17 20:22:42,595 INFO  L129   ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-17 20:22:42,595 INFO  L130   ssoRankerPreferences]: Dump SMT script to file: false
[2025-03-17 20:22:42,595 INFO  L131   ssoRankerPreferences]: Path of dumped script: 
[2025-03-17 20:22:42,595 INFO  L132   ssoRankerPreferences]: Filename of dumped script: nested_3.c_Iteration6_Loop
[2025-03-17 20:22:42,595 INFO  L133   ssoRankerPreferences]: MapElimAlgo: Frank
[2025-03-17 20:22:42,595 INFO  L241          LassoAnalysis]: Starting lasso preprocessing...
[2025-03-17 20:22:42,604 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-17 20:22:42,608 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-17 20:22:42,611 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-17 20:22:42,615 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-17 20:22:42,617 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-17 20:22:42,619 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-17 20:22:42,652 INFO  L259          LassoAnalysis]: Preprocessing complete.
[2025-03-17 20:22:42,653 INFO  L365          LassoAnalysis]: Checking for nontermination...
[2025-03-17 20:22:42,654 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-17 20:22:42,654 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-17 20:22:42,659 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2025-03-17 20:22:42,660 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process
[2025-03-17 20:22:42,660 INFO  L148   nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2025-03-17 20:22:42,660 INFO  L160   nArgumentSynthesizer]: Using integer mode.
[2025-03-17 20:22:42,674 INFO  L398          LassoAnalysis]: Proved nontermination for one component.
[2025-03-17 20:22:42,674 INFO  L401          LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~pre5#1=0} Honda state: {ULTIMATE.start_main_#t~pre5#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2025-03-17 20:22:42,680 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0
[2025-03-17 20:22:42,680 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-17 20:22:42,680 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-17 20:22:42,681 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2025-03-17 20:22:42,682 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process
[2025-03-17 20:22:42,683 INFO  L148   nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2025-03-17 20:22:42,683 INFO  L160   nArgumentSynthesizer]: Using integer mode.
[2025-03-17 20:22:42,695 INFO  L398          LassoAnalysis]: Proved nontermination for one component.
[2025-03-17 20:22:42,696 INFO  L401          LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0#1=6} Honda state: {ULTIMATE.start_main_~c~0#1=6} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2025-03-17 20:22:42,702 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0
[2025-03-17 20:22:42,702 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-17 20:22:42,702 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-17 20:22:42,704 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2025-03-17 20:22:42,705 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process
[2025-03-17 20:22:42,706 INFO  L148   nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2025-03-17 20:22:42,706 INFO  L160   nArgumentSynthesizer]: Using integer mode.
[2025-03-17 20:22:42,722 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0
[2025-03-17 20:22:42,722 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-17 20:22:42,723 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-17 20:22:42,724 INFO  L229       MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2025-03-17 20:22:42,725 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process
[2025-03-17 20:22:42,726 INFO  L148   nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2025-03-17 20:22:42,726 INFO  L160   nArgumentSynthesizer]: Using integer mode.
[2025-03-17 20:22:42,749 INFO  L405          LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2025-03-17 20:22:42,753 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0
[2025-03-17 20:22:42,753 INFO  L204          LassoAnalysis]: Preferences:
[2025-03-17 20:22:42,753 INFO  L125   ssoRankerPreferences]: Compute integeral hull: false
[2025-03-17 20:22:42,753 INFO  L126   ssoRankerPreferences]: Enable LassoPartitioneer: true
[2025-03-17 20:22:42,753 INFO  L127   ssoRankerPreferences]: Term annotations enabled: false
[2025-03-17 20:22:42,753 INFO  L128   ssoRankerPreferences]: Use exernal solver: false
[2025-03-17 20:22:42,753 INFO  L129   ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-17 20:22:42,753 INFO  L130   ssoRankerPreferences]: Dump SMT script to file: false
[2025-03-17 20:22:42,753 INFO  L131   ssoRankerPreferences]: Path of dumped script: 
[2025-03-17 20:22:42,753 INFO  L132   ssoRankerPreferences]: Filename of dumped script: nested_3.c_Iteration6_Loop
[2025-03-17 20:22:42,753 INFO  L133   ssoRankerPreferences]: MapElimAlgo: Frank
[2025-03-17 20:22:42,753 INFO  L241          LassoAnalysis]: Starting lasso preprocessing...
[2025-03-17 20:22:42,754 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-17 20:22:42,757 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-17 20:22:42,759 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-17 20:22:42,762 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-17 20:22:42,767 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-17 20:22:42,769 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-17 20:22:42,804 INFO  L259          LassoAnalysis]: Preprocessing complete.
[2025-03-17 20:22:42,807 INFO  L451          LassoAnalysis]: Using template 'affine'.
[2025-03-17 20:22:42,808 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-17 20:22:42,808 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-17 20:22:42,810 INFO  L229       MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2025-03-17 20:22:42,810 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process
[2025-03-17 20:22:42,811 INFO  L120   nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2025-03-17 20:22:42,822 INFO  L338   nArgumentSynthesizer]: Template has degree 0.
[2025-03-17 20:22:42,822 INFO  L351   nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2025-03-17 20:22:42,822 INFO  L203   nArgumentSynthesizer]: 1 stem disjuncts
[2025-03-17 20:22:42,822 INFO  L204   nArgumentSynthesizer]: 1 loop disjuncts
[2025-03-17 20:22:42,822 INFO  L205   nArgumentSynthesizer]: 2 template conjuncts.
[2025-03-17 20:22:42,825 INFO  L401   nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2025-03-17 20:22:42,825 INFO  L402   nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2025-03-17 20:22:42,827 INFO  L488          LassoAnalysis]: Proving termination failed for this template and these settings.
[2025-03-17 20:22:42,833 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0
[2025-03-17 20:22:42,833 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-17 20:22:42,833 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-17 20:22:42,835 INFO  L229       MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2025-03-17 20:22:42,836 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process
[2025-03-17 20:22:42,838 INFO  L120   nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2025-03-17 20:22:42,848 INFO  L338   nArgumentSynthesizer]: Template has degree 0.
[2025-03-17 20:22:42,848 INFO  L351   nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2025-03-17 20:22:42,848 INFO  L203   nArgumentSynthesizer]: 1 stem disjuncts
[2025-03-17 20:22:42,848 INFO  L204   nArgumentSynthesizer]: 1 loop disjuncts
[2025-03-17 20:22:42,848 INFO  L205   nArgumentSynthesizer]: 2 template conjuncts.
[2025-03-17 20:22:42,848 INFO  L401   nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2025-03-17 20:22:42,848 INFO  L402   nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2025-03-17 20:22:42,850 INFO  L488          LassoAnalysis]: Proving termination failed for this template and these settings.
[2025-03-17 20:22:42,855 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0
[2025-03-17 20:22:42,855 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-17 20:22:42,855 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-17 20:22:42,857 INFO  L229       MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2025-03-17 20:22:42,858 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process
[2025-03-17 20:22:42,858 INFO  L120   nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2025-03-17 20:22:42,869 INFO  L338   nArgumentSynthesizer]: Template has degree 0.
[2025-03-17 20:22:42,869 INFO  L351   nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2025-03-17 20:22:42,869 INFO  L203   nArgumentSynthesizer]: 1 stem disjuncts
[2025-03-17 20:22:42,869 INFO  L204   nArgumentSynthesizer]: 1 loop disjuncts
[2025-03-17 20:22:42,869 INFO  L205   nArgumentSynthesizer]: 2 template conjuncts.
[2025-03-17 20:22:42,869 INFO  L401   nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2025-03-17 20:22:42,869 INFO  L402   nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2025-03-17 20:22:42,871 INFO  L488          LassoAnalysis]: Proving termination failed for this template and these settings.
[2025-03-17 20:22:42,877 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0
[2025-03-17 20:22:42,877 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-17 20:22:42,877 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-17 20:22:42,879 INFO  L229       MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2025-03-17 20:22:42,879 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process
[2025-03-17 20:22:42,881 INFO  L120   nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2025-03-17 20:22:42,891 INFO  L338   nArgumentSynthesizer]: Template has degree 0.
[2025-03-17 20:22:42,891 INFO  L351   nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2025-03-17 20:22:42,891 INFO  L203   nArgumentSynthesizer]: 1 stem disjuncts
[2025-03-17 20:22:42,891 INFO  L204   nArgumentSynthesizer]: 1 loop disjuncts
[2025-03-17 20:22:42,891 INFO  L205   nArgumentSynthesizer]: 2 template conjuncts.
[2025-03-17 20:22:42,892 INFO  L401   nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2025-03-17 20:22:42,892 INFO  L402   nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2025-03-17 20:22:42,893 INFO  L420   nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2025-03-17 20:22:42,896 INFO  L443   ModelExtractionUtils]: Simplification made 3 calls to the SMT solver.
[2025-03-17 20:22:42,898 INFO  L444   ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero.
[2025-03-17 20:22:42,900 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-17 20:22:42,900 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-17 20:22:42,902 INFO  L229       MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2025-03-17 20:22:42,903 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process
[2025-03-17 20:22:42,905 INFO  L435   nArgumentSynthesizer]: Simplifying supporting invariants...
[2025-03-17 20:22:42,905 INFO  L438   nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2025-03-17 20:22:42,905 INFO  L474          LassoAnalysis]: Proved termination.
[2025-03-17 20:22:42,905 INFO  L476          LassoAnalysis]: Termination argument consisting of:
Ranking function f(ULTIMATE.start_main_~a~0#1) = -2*ULTIMATE.start_main_~a~0#1 + 11
Supporting invariants []
[2025-03-17 20:22:42,911 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0
[2025-03-17 20:22:42,913 INFO  L156   tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2025-03-17 20:22:42,937 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-17 20:22:42,940 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes.
[2025-03-17 20:22:42,944 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements.
[2025-03-17 20:22:42,944 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 20:22:42,944 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-17 20:22:42,945 INFO  L256         TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjuncts are in the unsatisfiable core
[2025-03-17 20:22:42,946 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-17 20:22:42,959 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes.
[2025-03-17 20:22:42,981 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements.
[2025-03-17 20:22:42,981 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 20:22:42,981 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-17 20:22:42,982 INFO  L256         TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 4 conjuncts are in the unsatisfiable core
[2025-03-17 20:22:42,983 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-17 20:22:43,104 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0
[2025-03-17 20:22:43,194 INFO  L134       CoverageAnalysis]: Checked inductivity of 882 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 882 trivial. 0 not checked.
[2025-03-17 20:22:43,196 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 
[2025-03-17 20:22:43,197 INFO  L71    iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 51 states and 58 transitions. cyclomatic complexity: 8 Second operand  has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 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)
[2025-03-17 20:22:43,225 INFO  L75    iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 51 states and 58 transitions. cyclomatic complexity: 8. Second operand  has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 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 101 states and 116 transitions. Complement of second has 4 states.
[2025-03-17 20:22:43,227 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 
[2025-03-17 20:22:43,228 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 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)
[2025-03-17 20:22:43,228 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions.
[2025-03-17 20:22:43,232 INFO  L84            BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 1 letters. Loop has 50 letters.
[2025-03-17 20:22:43,233 INFO  L116           BuchiAccepts]: Finished buchiAccepts.
[2025-03-17 20:22:43,233 INFO  L84            BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 51 letters. Loop has 50 letters.
[2025-03-17 20:22:43,234 INFO  L116           BuchiAccepts]: Finished buchiAccepts.
[2025-03-17 20:22:43,234 INFO  L84            BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 1 letters. Loop has 100 letters.
[2025-03-17 20:22:43,234 INFO  L116           BuchiAccepts]: Finished buchiAccepts.
[2025-03-17 20:22:43,234 INFO  L82        GeneralOperation]: Start removeNonLiveStates. Operand 101 states and 116 transitions.
[2025-03-17 20:22:43,237 INFO  L131   ngComponentsAnalysis]: Automaton has 6 accepting balls. 13
[2025-03-17 20:22:43,238 INFO  L88        GeneralOperation]: Finished removeNonLiveStates. Reduced from 101 states to 101 states and 116 transitions.
[2025-03-17 20:22:43,238 INFO  L87         BuchiClosureNwa]: Accepting states before buchiClosure: 50
[2025-03-17 20:22:43,238 INFO  L106        BuchiClosureNwa]: Accepting states after buchiClosure: 51
[2025-03-17 20:22:43,238 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 101 states and 116 transitions.
[2025-03-17 20:22:43,239 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2025-03-17 20:22:43,239 INFO  L218   hiAutomatonCegarLoop]: Abstraction has 101 states and 116 transitions.
[2025-03-17 20:22:43,240 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 101 states and 116 transitions.
[2025-03-17 20:22:43,241 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 60.
[2025-03-17 20:22:43,241 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 60 states, 60 states have (on average 1.1666666666666667) internal successors, (70), 59 states have internal predecessors, (70), 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)
[2025-03-17 20:22:43,242 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 70 transitions.
[2025-03-17 20:22:43,242 INFO  L240   hiAutomatonCegarLoop]: Abstraction has 60 states and 70 transitions.
[2025-03-17 20:22:43,242 INFO  L432   stractBuchiCegarLoop]: Abstraction has 60 states and 70 transitions.
[2025-03-17 20:22:43,242 INFO  L338   stractBuchiCegarLoop]: ======== Iteration 7 ============
[2025-03-17 20:22:43,242 INFO  L72            BuchiIsEmpty]: Start buchiIsEmpty. Operand 60 states and 70 transitions.
[2025-03-17 20:22:43,242 INFO  L131   ngComponentsAnalysis]: Automaton has 1 accepting balls. 8
[2025-03-17 20:22:43,242 INFO  L87            BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2025-03-17 20:22:43,242 INFO  L119           BuchiIsEmpty]: Starting construction of run
[2025-03-17 20:22:43,243 INFO  L148   hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1]
[2025-03-17 20:22:43,243 INFO  L149   hiAutomatonCegarLoop]: Counterexample loop histogram [6, 1, 1]
[2025-03-17 20:22:43,243 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(11, 2);call #Ultimate.allocInit(12, 3);assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~pre4#1, main_#t~pre5#1, main_#t~pre6#1, main_~a~0#1, main_~b~0#1, main_~c~0#1;main_~a~0#1 := 6;main_~b~0#1 := 6;main_~c~0#1 := 6;main_~a~0#1 := 0;" "assume main_~a~0#1 < 6;main_~b~0#1 := 0;" 
[2025-03-17 20:22:43,243 INFO  L754   eck$LassoCheckResult]: Loop: "assume main_~b~0#1 < 6;main_~c~0#1 := 0;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume !(main_~c~0#1 < 6);main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1;" 
[2025-03-17 20:22:43,243 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-17 20:22:43,243 INFO  L85        PathProgramCache]: Analyzing trace with hash 1247, now seen corresponding path program 1 times
[2025-03-17 20:22:43,243 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-17 20:22:43,243 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632344792]
[2025-03-17 20:22:43,243 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-17 20:22:43,243 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-17 20:22:43,248 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes.
[2025-03-17 20:22:43,250 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements.
[2025-03-17 20:22:43,250 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 20:22:43,250 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-17 20:22:43,250 INFO  L348             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2025-03-17 20:22:43,251 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes.
[2025-03-17 20:22:43,252 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements.
[2025-03-17 20:22:43,252 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 20:22:43,252 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-17 20:22:43,257 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2025-03-17 20:22:43,258 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-17 20:22:43,258 INFO  L85        PathProgramCache]: Analyzing trace with hash 349941343, now seen corresponding path program 1 times
[2025-03-17 20:22:43,258 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-17 20:22:43,258 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398708178]
[2025-03-17 20:22:43,258 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-17 20:22:43,258 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-17 20:22:43,262 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes.
[2025-03-17 20:22:43,264 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements.
[2025-03-17 20:22:43,264 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 20:22:43,264 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-17 20:22:43,264 INFO  L348             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2025-03-17 20:22:43,268 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes.
[2025-03-17 20:22:43,270 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements.
[2025-03-17 20:22:43,270 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 20:22:43,270 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-17 20:22:43,271 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2025-03-17 20:22:43,271 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-17 20:22:43,271 INFO  L85        PathProgramCache]: Analyzing trace with hash -1175456451, now seen corresponding path program 1 times
[2025-03-17 20:22:43,271 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-17 20:22:43,271 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805369949]
[2025-03-17 20:22:43,271 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-17 20:22:43,271 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-17 20:22:43,280 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes.
[2025-03-17 20:22:43,283 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements.
[2025-03-17 20:22:43,283 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 20:22:43,283 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-17 20:22:43,283 INFO  L348             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2025-03-17 20:22:43,284 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes.
[2025-03-17 20:22:43,287 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements.
[2025-03-17 20:22:43,288 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 20:22:43,288 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-17 20:22:43,289 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2025-03-17 20:22:43,331 INFO  L204          LassoAnalysis]: Preferences:
[2025-03-17 20:22:43,331 INFO  L125   ssoRankerPreferences]: Compute integeral hull: false
[2025-03-17 20:22:43,331 INFO  L126   ssoRankerPreferences]: Enable LassoPartitioneer: true
[2025-03-17 20:22:43,331 INFO  L127   ssoRankerPreferences]: Term annotations enabled: false
[2025-03-17 20:22:43,331 INFO  L128   ssoRankerPreferences]: Use exernal solver: true
[2025-03-17 20:22:43,332 INFO  L129   ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-17 20:22:43,332 INFO  L130   ssoRankerPreferences]: Dump SMT script to file: false
[2025-03-17 20:22:43,332 INFO  L131   ssoRankerPreferences]: Path of dumped script: 
[2025-03-17 20:22:43,332 INFO  L132   ssoRankerPreferences]: Filename of dumped script: nested_3.c_Iteration7_Loop
[2025-03-17 20:22:43,332 INFO  L133   ssoRankerPreferences]: MapElimAlgo: Frank
[2025-03-17 20:22:43,332 INFO  L241          LassoAnalysis]: Starting lasso preprocessing...
[2025-03-17 20:22:43,332 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-17 20:22:43,336 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-17 20:22:43,337 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-17 20:22:43,339 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-17 20:22:43,359 INFO  L259          LassoAnalysis]: Preprocessing complete.
[2025-03-17 20:22:43,359 INFO  L365          LassoAnalysis]: Checking for nontermination...
[2025-03-17 20:22:43,359 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-17 20:22:43,359 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-17 20:22:43,361 INFO  L229       MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2025-03-17 20:22:43,362 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process
[2025-03-17 20:22:43,363 INFO  L148   nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2025-03-17 20:22:43,363 INFO  L160   nArgumentSynthesizer]: Using integer mode.
[2025-03-17 20:22:43,379 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0
[2025-03-17 20:22:43,380 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-17 20:22:43,380 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-17 20:22:43,381 INFO  L229       MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2025-03-17 20:22:43,383 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process
[2025-03-17 20:22:43,384 INFO  L148   nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2025-03-17 20:22:43,384 INFO  L160   nArgumentSynthesizer]: Using integer mode.
[2025-03-17 20:22:43,407 INFO  L405          LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2025-03-17 20:22:43,411 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0
[2025-03-17 20:22:43,411 INFO  L204          LassoAnalysis]: Preferences:
[2025-03-17 20:22:43,411 INFO  L125   ssoRankerPreferences]: Compute integeral hull: false
[2025-03-17 20:22:43,411 INFO  L126   ssoRankerPreferences]: Enable LassoPartitioneer: true
[2025-03-17 20:22:43,411 INFO  L127   ssoRankerPreferences]: Term annotations enabled: false
[2025-03-17 20:22:43,411 INFO  L128   ssoRankerPreferences]: Use exernal solver: false
[2025-03-17 20:22:43,411 INFO  L129   ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-17 20:22:43,411 INFO  L130   ssoRankerPreferences]: Dump SMT script to file: false
[2025-03-17 20:22:43,411 INFO  L131   ssoRankerPreferences]: Path of dumped script: 
[2025-03-17 20:22:43,411 INFO  L132   ssoRankerPreferences]: Filename of dumped script: nested_3.c_Iteration7_Loop
[2025-03-17 20:22:43,411 INFO  L133   ssoRankerPreferences]: MapElimAlgo: Frank
[2025-03-17 20:22:43,411 INFO  L241          LassoAnalysis]: Starting lasso preprocessing...
[2025-03-17 20:22:43,412 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-17 20:22:43,417 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-17 20:22:43,418 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-17 20:22:43,420 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-17 20:22:43,440 INFO  L259          LassoAnalysis]: Preprocessing complete.
[2025-03-17 20:22:43,440 INFO  L451          LassoAnalysis]: Using template 'affine'.
[2025-03-17 20:22:43,440 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-17 20:22:43,440 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-17 20:22:43,442 INFO  L229       MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2025-03-17 20:22:43,444 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process
[2025-03-17 20:22:43,445 INFO  L120   nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2025-03-17 20:22:43,455 INFO  L338   nArgumentSynthesizer]: Template has degree 0.
[2025-03-17 20:22:43,455 INFO  L351   nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2025-03-17 20:22:43,455 INFO  L203   nArgumentSynthesizer]: 1 stem disjuncts
[2025-03-17 20:22:43,455 INFO  L204   nArgumentSynthesizer]: 1 loop disjuncts
[2025-03-17 20:22:43,455 INFO  L205   nArgumentSynthesizer]: 2 template conjuncts.
[2025-03-17 20:22:43,456 INFO  L401   nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2025-03-17 20:22:43,456 INFO  L402   nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2025-03-17 20:22:43,458 INFO  L420   nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2025-03-17 20:22:43,460 INFO  L443   ModelExtractionUtils]: Simplification made 3 calls to the SMT solver.
[2025-03-17 20:22:43,460 INFO  L444   ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero.
[2025-03-17 20:22:43,460 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-17 20:22:43,460 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-17 20:22:43,462 INFO  L229       MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2025-03-17 20:22:43,463 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process
[2025-03-17 20:22:43,464 INFO  L435   nArgumentSynthesizer]: Simplifying supporting invariants...
[2025-03-17 20:22:43,464 INFO  L438   nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2025-03-17 20:22:43,464 INFO  L474          LassoAnalysis]: Proved termination.
[2025-03-17 20:22:43,465 INFO  L476          LassoAnalysis]: Termination argument consisting of:
Ranking function f(ULTIMATE.start_main_~b~0#1) = -2*ULTIMATE.start_main_~b~0#1 + 11
Supporting invariants []
[2025-03-17 20:22:43,470 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0
[2025-03-17 20:22:43,471 INFO  L156   tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2025-03-17 20:22:43,480 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-17 20:22:43,482 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes.
[2025-03-17 20:22:43,485 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements.
[2025-03-17 20:22:43,485 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 20:22:43,485 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-17 20:22:43,485 INFO  L256         TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjuncts are in the unsatisfiable core
[2025-03-17 20:22:43,485 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-17 20:22:43,489 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes.
[2025-03-17 20:22:43,491 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements.
[2025-03-17 20:22:43,491 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 20:22:43,491 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-17 20:22:43,491 INFO  L256         TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjuncts are in the unsatisfiable core
[2025-03-17 20:22:43,492 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-17 20:22:43,516 INFO  L134       CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked.
[2025-03-17 20:22:43,516 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 
[2025-03-17 20:22:43,517 INFO  L71    iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 60 states and 70 transitions. cyclomatic complexity: 12 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)
[2025-03-17 20:22:43,535 INFO  L75    iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 60 states and 70 transitions. cyclomatic complexity: 12. 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 169 states and 197 transitions. Complement of second has 7 states.
[2025-03-17 20:22:43,538 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 
[2025-03-17 20:22:43,538 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)
[2025-03-17 20:22:43,539 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions.
[2025-03-17 20:22:43,539 INFO  L84            BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 2 letters. Loop has 8 letters.
[2025-03-17 20:22:43,539 INFO  L116           BuchiAccepts]: Finished buchiAccepts.
[2025-03-17 20:22:43,539 INFO  L84            BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 10 letters. Loop has 8 letters.
[2025-03-17 20:22:43,539 INFO  L116           BuchiAccepts]: Finished buchiAccepts.
[2025-03-17 20:22:43,539 INFO  L84            BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 2 letters. Loop has 16 letters.
[2025-03-17 20:22:43,539 INFO  L116           BuchiAccepts]: Finished buchiAccepts.
[2025-03-17 20:22:43,539 INFO  L82        GeneralOperation]: Start removeNonLiveStates. Operand 169 states and 197 transitions.
[2025-03-17 20:22:43,544 INFO  L131   ngComponentsAnalysis]: Automaton has 2 accepting balls. 9
[2025-03-17 20:22:43,545 INFO  L88        GeneralOperation]: Finished removeNonLiveStates. Reduced from 169 states to 126 states and 147 transitions.
[2025-03-17 20:22:43,545 INFO  L87         BuchiClosureNwa]: Accepting states before buchiClosure: 17
[2025-03-17 20:22:43,545 INFO  L106        BuchiClosureNwa]: Accepting states after buchiClosure: 18
[2025-03-17 20:22:43,545 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 126 states and 147 transitions.
[2025-03-17 20:22:43,545 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2025-03-17 20:22:43,546 INFO  L218   hiAutomatonCegarLoop]: Abstraction has 126 states and 147 transitions.
[2025-03-17 20:22:43,546 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 126 states and 147 transitions.
[2025-03-17 20:22:43,550 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 70.
[2025-03-17 20:22:43,550 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 70 states, 70 states have (on average 1.1857142857142857) internal successors, (83), 69 states have internal predecessors, (83), 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)
[2025-03-17 20:22:43,551 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 83 transitions.
[2025-03-17 20:22:43,551 INFO  L240   hiAutomatonCegarLoop]: Abstraction has 70 states and 83 transitions.
[2025-03-17 20:22:43,551 INFO  L432   stractBuchiCegarLoop]: Abstraction has 70 states and 83 transitions.
[2025-03-17 20:22:43,551 INFO  L338   stractBuchiCegarLoop]: ======== Iteration 8 ============
[2025-03-17 20:22:43,551 INFO  L72            BuchiIsEmpty]: Start buchiIsEmpty. Operand 70 states and 83 transitions.
[2025-03-17 20:22:43,551 INFO  L131   ngComponentsAnalysis]: Automaton has 2 accepting balls. 9
[2025-03-17 20:22:43,551 INFO  L87            BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2025-03-17 20:22:43,551 INFO  L119           BuchiIsEmpty]: Starting construction of run
[2025-03-17 20:22:43,551 INFO  L148   hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1]
[2025-03-17 20:22:43,551 INFO  L149   hiAutomatonCegarLoop]: Counterexample loop histogram [1]
[2025-03-17 20:22:43,552 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(11, 2);call #Ultimate.allocInit(12, 3);assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~pre4#1, main_#t~pre5#1, main_#t~pre6#1, main_~a~0#1, main_~b~0#1, main_~c~0#1;main_~a~0#1 := 6;main_~b~0#1 := 6;main_~c~0#1 := 6;main_~a~0#1 := 0;" "assume main_~a~0#1 < 6;main_~b~0#1 := 0;" "assume main_~b~0#1 < 6;main_~c~0#1 := 0;" 
[2025-03-17 20:22:43,552 INFO  L754   eck$LassoCheckResult]: Loop: "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" 
[2025-03-17 20:22:43,552 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-17 20:22:43,552 INFO  L85        PathProgramCache]: Analyzing trace with hash 38663, now seen corresponding path program 1 times
[2025-03-17 20:22:43,552 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-17 20:22:43,552 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758226541]
[2025-03-17 20:22:43,552 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-17 20:22:43,552 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-17 20:22:43,559 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes.
[2025-03-17 20:22:43,561 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements.
[2025-03-17 20:22:43,561 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 20:22:43,561 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-17 20:22:43,561 INFO  L348             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2025-03-17 20:22:43,562 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes.
[2025-03-17 20:22:43,564 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements.
[2025-03-17 20:22:43,564 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 20:22:43,564 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-17 20:22:43,565 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2025-03-17 20:22:43,566 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-17 20:22:43,566 INFO  L85        PathProgramCache]: Analyzing trace with hash 36, now seen corresponding path program 1 times
[2025-03-17 20:22:43,566 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-17 20:22:43,566 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167392063]
[2025-03-17 20:22:43,566 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-17 20:22:43,566 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-17 20:22:43,567 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes.
[2025-03-17 20:22:43,567 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements.
[2025-03-17 20:22:43,567 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 20:22:43,567 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-17 20:22:43,568 INFO  L348             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2025-03-17 20:22:43,568 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes.
[2025-03-17 20:22:43,568 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements.
[2025-03-17 20:22:43,568 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 20:22:43,568 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-17 20:22:43,569 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2025-03-17 20:22:43,570 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-17 20:22:43,570 INFO  L85        PathProgramCache]: Analyzing trace with hash 1198558, now seen corresponding path program 1 times
[2025-03-17 20:22:43,571 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-17 20:22:43,571 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899080176]
[2025-03-17 20:22:43,571 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-17 20:22:43,571 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-17 20:22:43,572 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes.
[2025-03-17 20:22:43,574 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements.
[2025-03-17 20:22:43,574 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 20:22:43,574 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-17 20:22:43,574 INFO  L348             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2025-03-17 20:22:43,574 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes.
[2025-03-17 20:22:43,580 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements.
[2025-03-17 20:22:43,581 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 20:22:43,581 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-17 20:22:43,581 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2025-03-17 20:22:43,593 INFO  L204          LassoAnalysis]: Preferences:
[2025-03-17 20:22:43,593 INFO  L125   ssoRankerPreferences]: Compute integeral hull: false
[2025-03-17 20:22:43,593 INFO  L126   ssoRankerPreferences]: Enable LassoPartitioneer: true
[2025-03-17 20:22:43,593 INFO  L127   ssoRankerPreferences]: Term annotations enabled: false
[2025-03-17 20:22:43,593 INFO  L128   ssoRankerPreferences]: Use exernal solver: true
[2025-03-17 20:22:43,593 INFO  L129   ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-17 20:22:43,593 INFO  L130   ssoRankerPreferences]: Dump SMT script to file: false
[2025-03-17 20:22:43,593 INFO  L131   ssoRankerPreferences]: Path of dumped script: 
[2025-03-17 20:22:43,593 INFO  L132   ssoRankerPreferences]: Filename of dumped script: nested_3.c_Iteration8_Loop
[2025-03-17 20:22:43,593 INFO  L133   ssoRankerPreferences]: MapElimAlgo: Frank
[2025-03-17 20:22:43,593 INFO  L241          LassoAnalysis]: Starting lasso preprocessing...
[2025-03-17 20:22:43,593 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-17 20:22:43,595 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-17 20:22:43,614 INFO  L259          LassoAnalysis]: Preprocessing complete.
[2025-03-17 20:22:43,614 INFO  L365          LassoAnalysis]: Checking for nontermination...
[2025-03-17 20:22:43,614 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-17 20:22:43,614 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-17 20:22:43,617 INFO  L229       MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2025-03-17 20:22:43,618 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process
[2025-03-17 20:22:43,620 INFO  L148   nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2025-03-17 20:22:43,620 INFO  L160   nArgumentSynthesizer]: Using integer mode.
[2025-03-17 20:22:43,631 INFO  L398          LassoAnalysis]: Proved nontermination for one component.
[2025-03-17 20:22:43,631 INFO  L401          LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~pre4#1=0} Honda state: {ULTIMATE.start_main_#t~pre4#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2025-03-17 20:22:43,637 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0
[2025-03-17 20:22:43,637 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-17 20:22:43,637 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-17 20:22:43,639 INFO  L229       MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2025-03-17 20:22:43,640 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process
[2025-03-17 20:22:43,642 INFO  L148   nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2025-03-17 20:22:43,642 INFO  L160   nArgumentSynthesizer]: Using integer mode.
[2025-03-17 20:22:43,658 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0
[2025-03-17 20:22:43,659 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-17 20:22:43,659 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-17 20:22:43,660 INFO  L229       MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2025-03-17 20:22:43,661 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process
[2025-03-17 20:22:43,663 INFO  L148   nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2025-03-17 20:22:43,663 INFO  L160   nArgumentSynthesizer]: Using integer mode.
[2025-03-17 20:22:43,686 INFO  L405          LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2025-03-17 20:22:43,691 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0
[2025-03-17 20:22:43,691 INFO  L204          LassoAnalysis]: Preferences:
[2025-03-17 20:22:43,691 INFO  L125   ssoRankerPreferences]: Compute integeral hull: false
[2025-03-17 20:22:43,691 INFO  L126   ssoRankerPreferences]: Enable LassoPartitioneer: true
[2025-03-17 20:22:43,691 INFO  L127   ssoRankerPreferences]: Term annotations enabled: false
[2025-03-17 20:22:43,691 INFO  L128   ssoRankerPreferences]: Use exernal solver: false
[2025-03-17 20:22:43,691 INFO  L129   ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-17 20:22:43,691 INFO  L130   ssoRankerPreferences]: Dump SMT script to file: false
[2025-03-17 20:22:43,691 INFO  L131   ssoRankerPreferences]: Path of dumped script: 
[2025-03-17 20:22:43,691 INFO  L132   ssoRankerPreferences]: Filename of dumped script: nested_3.c_Iteration8_Loop
[2025-03-17 20:22:43,691 INFO  L133   ssoRankerPreferences]: MapElimAlgo: Frank
[2025-03-17 20:22:43,691 INFO  L241          LassoAnalysis]: Starting lasso preprocessing...
[2025-03-17 20:22:43,692 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-17 20:22:43,694 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-17 20:22:43,707 INFO  L259          LassoAnalysis]: Preprocessing complete.
[2025-03-17 20:22:43,707 INFO  L451          LassoAnalysis]: Using template 'affine'.
[2025-03-17 20:22:43,707 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-17 20:22:43,707 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-17 20:22:43,709 INFO  L229       MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2025-03-17 20:22:43,710 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process
[2025-03-17 20:22:43,711 INFO  L120   nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2025-03-17 20:22:43,720 INFO  L338   nArgumentSynthesizer]: Template has degree 0.
[2025-03-17 20:22:43,720 INFO  L351   nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2025-03-17 20:22:43,721 INFO  L203   nArgumentSynthesizer]: 1 stem disjuncts
[2025-03-17 20:22:43,721 INFO  L204   nArgumentSynthesizer]: 1 loop disjuncts
[2025-03-17 20:22:43,721 INFO  L205   nArgumentSynthesizer]: 2 template conjuncts.
[2025-03-17 20:22:43,722 INFO  L401   nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2025-03-17 20:22:43,722 INFO  L402   nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2025-03-17 20:22:43,723 INFO  L488          LassoAnalysis]: Proving termination failed for this template and these settings.
[2025-03-17 20:22:43,729 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0
[2025-03-17 20:22:43,729 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-17 20:22:43,729 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-17 20:22:43,731 INFO  L229       MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2025-03-17 20:22:43,733 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process
[2025-03-17 20:22:43,734 INFO  L120   nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2025-03-17 20:22:43,743 INFO  L338   nArgumentSynthesizer]: Template has degree 0.
[2025-03-17 20:22:43,743 INFO  L351   nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2025-03-17 20:22:43,744 INFO  L203   nArgumentSynthesizer]: 1 stem disjuncts
[2025-03-17 20:22:43,744 INFO  L204   nArgumentSynthesizer]: 1 loop disjuncts
[2025-03-17 20:22:43,744 INFO  L205   nArgumentSynthesizer]: 2 template conjuncts.
[2025-03-17 20:22:43,744 INFO  L401   nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2025-03-17 20:22:43,744 INFO  L402   nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2025-03-17 20:22:43,746 INFO  L420   nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2025-03-17 20:22:43,748 INFO  L443   ModelExtractionUtils]: Simplification made 3 calls to the SMT solver.
[2025-03-17 20:22:43,748 INFO  L444   ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero.
[2025-03-17 20:22:43,748 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-17 20:22:43,748 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-17 20:22:43,750 INFO  L229       MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2025-03-17 20:22:43,751 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process
[2025-03-17 20:22:43,753 INFO  L435   nArgumentSynthesizer]: Simplifying supporting invariants...
[2025-03-17 20:22:43,753 INFO  L438   nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2025-03-17 20:22:43,753 INFO  L474          LassoAnalysis]: Proved termination.
[2025-03-17 20:22:43,753 INFO  L476          LassoAnalysis]: Termination argument consisting of:
Ranking function f(ULTIMATE.start_main_~c~0#1) = -2*ULTIMATE.start_main_~c~0#1 + 11
Supporting invariants []
[2025-03-17 20:22:43,759 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0
[2025-03-17 20:22:43,760 INFO  L156   tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2025-03-17 20:22:43,770 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-17 20:22:43,772 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes.
[2025-03-17 20:22:43,775 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements.
[2025-03-17 20:22:43,775 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 20:22:43,775 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-17 20:22:43,775 INFO  L256         TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 2 conjuncts are in the unsatisfiable core
[2025-03-17 20:22:43,775 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-17 20:22:43,778 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes.
[2025-03-17 20:22:43,779 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements.
[2025-03-17 20:22:43,779 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 20:22:43,779 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-17 20:22:43,779 WARN  L254         TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core
[2025-03-17 20:22:43,779 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-17 20:22:43,779 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-17 20:22:43,780 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 
[2025-03-17 20:22:43,780 INFO  L71    iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 70 states and 83 transitions. cyclomatic complexity: 17 Second operand  has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-17 20:22:43,788 INFO  L75    iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 70 states and 83 transitions. cyclomatic complexity: 17. Second operand  has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 91 states and 107 transitions. Complement of second has 5 states.
[2025-03-17 20:22:43,789 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 
[2025-03-17 20:22:43,790 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-17 20:22:43,790 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions.
[2025-03-17 20:22:43,790 INFO  L84            BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 1 letters.
[2025-03-17 20:22:43,790 INFO  L116           BuchiAccepts]: Finished buchiAccepts.
[2025-03-17 20:22:43,790 INFO  L84            BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 4 letters. Loop has 1 letters.
[2025-03-17 20:22:43,790 INFO  L116           BuchiAccepts]: Finished buchiAccepts.
[2025-03-17 20:22:43,790 INFO  L84            BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 2 letters.
[2025-03-17 20:22:43,790 INFO  L116           BuchiAccepts]: Finished buchiAccepts.
[2025-03-17 20:22:43,790 INFO  L82        GeneralOperation]: Start removeNonLiveStates. Operand 91 states and 107 transitions.
[2025-03-17 20:22:43,791 INFO  L131   ngComponentsAnalysis]: Automaton has 2 accepting balls. 9
[2025-03-17 20:22:43,792 INFO  L88        GeneralOperation]: Finished removeNonLiveStates. Reduced from 91 states to 87 states and 102 transitions.
[2025-03-17 20:22:43,792 INFO  L87         BuchiClosureNwa]: Accepting states before buchiClosure: 12
[2025-03-17 20:22:43,792 INFO  L106        BuchiClosureNwa]: Accepting states after buchiClosure: 12
[2025-03-17 20:22:43,792 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 87 states and 102 transitions.
[2025-03-17 20:22:43,792 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2025-03-17 20:22:43,792 INFO  L218   hiAutomatonCegarLoop]: Abstraction has 87 states and 102 transitions.
[2025-03-17 20:22:43,792 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 87 states and 102 transitions.
[2025-03-17 20:22:43,798 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 70.
[2025-03-17 20:22:43,798 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 70 states, 70 states have (on average 1.1714285714285715) internal successors, (82), 69 states have internal predecessors, (82), 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)
[2025-03-17 20:22:43,798 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 82 transitions.
[2025-03-17 20:22:43,798 INFO  L240   hiAutomatonCegarLoop]: Abstraction has 70 states and 82 transitions.
[2025-03-17 20:22:43,798 INFO  L432   stractBuchiCegarLoop]: Abstraction has 70 states and 82 transitions.
[2025-03-17 20:22:43,798 INFO  L338   stractBuchiCegarLoop]: ======== Iteration 9 ============
[2025-03-17 20:22:43,799 INFO  L72            BuchiIsEmpty]: Start buchiIsEmpty. Operand 70 states and 82 transitions.
[2025-03-17 20:22:43,799 INFO  L131   ngComponentsAnalysis]: Automaton has 2 accepting balls. 9
[2025-03-17 20:22:43,799 INFO  L87            BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2025-03-17 20:22:43,799 INFO  L119           BuchiIsEmpty]: Starting construction of run
[2025-03-17 20:22:43,799 INFO  L148   hiAutomatonCegarLoop]: Counterexample stem histogram [6, 2, 1, 1, 1]
[2025-03-17 20:22:43,799 INFO  L149   hiAutomatonCegarLoop]: Counterexample loop histogram [1]
[2025-03-17 20:22:43,799 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(11, 2);call #Ultimate.allocInit(12, 3);assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~pre4#1, main_#t~pre5#1, main_#t~pre6#1, main_~a~0#1, main_~b~0#1, main_~c~0#1;main_~a~0#1 := 6;main_~b~0#1 := 6;main_~c~0#1 := 6;main_~a~0#1 := 0;" "assume main_~a~0#1 < 6;main_~b~0#1 := 0;" "assume main_~b~0#1 < 6;main_~c~0#1 := 0;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume !(main_~c~0#1 < 6);main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1;" "assume main_~b~0#1 < 6;main_~c~0#1 := 0;" 
[2025-03-17 20:22:43,799 INFO  L754   eck$LassoCheckResult]: Loop: "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" 
[2025-03-17 20:22:43,800 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-17 20:22:43,800 INFO  L85        PathProgramCache]: Analyzing trace with hash -2079411607, now seen corresponding path program 2 times
[2025-03-17 20:22:43,800 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-17 20:22:43,800 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666049977]
[2025-03-17 20:22:43,800 INFO  L95    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2025-03-17 20:22:43,800 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-17 20:22:43,805 INFO  L108    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 11 statements into 2 equivalence classes.
[2025-03-17 20:22:43,808 INFO  L111    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 11 of 11 statements.
[2025-03-17 20:22:43,808 INFO  L114    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2025-03-17 20:22:43,812 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-17 20:22:43,813 INFO  L348             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2025-03-17 20:22:43,814 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes.
[2025-03-17 20:22:43,816 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements.
[2025-03-17 20:22:43,819 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 20:22:43,819 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-17 20:22:43,820 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2025-03-17 20:22:43,821 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-17 20:22:43,821 INFO  L85        PathProgramCache]: Analyzing trace with hash 36, now seen corresponding path program 2 times
[2025-03-17 20:22:43,821 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-17 20:22:43,821 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706500439]
[2025-03-17 20:22:43,821 INFO  L95    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2025-03-17 20:22:43,821 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-17 20:22:43,822 INFO  L108    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 1 statements into 1 equivalence classes.
[2025-03-17 20:22:43,824 INFO  L111    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 1 of 1 statements.
[2025-03-17 20:22:43,824 INFO  L114    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2025-03-17 20:22:43,824 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-17 20:22:43,824 INFO  L348             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2025-03-17 20:22:43,824 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes.
[2025-03-17 20:22:43,825 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements.
[2025-03-17 20:22:43,825 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 20:22:43,825 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-17 20:22:43,826 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2025-03-17 20:22:43,828 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-17 20:22:43,828 INFO  L85        PathProgramCache]: Analyzing trace with hash -37250372, now seen corresponding path program 3 times
[2025-03-17 20:22:43,828 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-17 20:22:43,828 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936334844]
[2025-03-17 20:22:43,828 INFO  L95    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2025-03-17 20:22:43,828 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-17 20:22:43,830 INFO  L108    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 12 statements into 5 equivalence classes.
[2025-03-17 20:22:43,839 INFO  L111    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) and asserted 12 of 12 statements.
[2025-03-17 20:22:43,839 INFO  L114    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s)
[2025-03-17 20:22:43,839 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-17 20:22:43,839 INFO  L348             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2025-03-17 20:22:43,840 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes.
[2025-03-17 20:22:43,843 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements.
[2025-03-17 20:22:43,843 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 20:22:43,843 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-17 20:22:43,844 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2025-03-17 20:22:43,854 INFO  L204          LassoAnalysis]: Preferences:
[2025-03-17 20:22:43,854 INFO  L125   ssoRankerPreferences]: Compute integeral hull: false
[2025-03-17 20:22:43,854 INFO  L126   ssoRankerPreferences]: Enable LassoPartitioneer: true
[2025-03-17 20:22:43,855 INFO  L127   ssoRankerPreferences]: Term annotations enabled: false
[2025-03-17 20:22:43,855 INFO  L128   ssoRankerPreferences]: Use exernal solver: true
[2025-03-17 20:22:43,855 INFO  L129   ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-17 20:22:43,855 INFO  L130   ssoRankerPreferences]: Dump SMT script to file: false
[2025-03-17 20:22:43,855 INFO  L131   ssoRankerPreferences]: Path of dumped script: 
[2025-03-17 20:22:43,855 INFO  L132   ssoRankerPreferences]: Filename of dumped script: nested_3.c_Iteration9_Loop
[2025-03-17 20:22:43,855 INFO  L133   ssoRankerPreferences]: MapElimAlgo: Frank
[2025-03-17 20:22:43,855 INFO  L241          LassoAnalysis]: Starting lasso preprocessing...
[2025-03-17 20:22:43,855 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-17 20:22:43,857 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-17 20:22:43,870 INFO  L259          LassoAnalysis]: Preprocessing complete.
[2025-03-17 20:22:43,870 INFO  L365          LassoAnalysis]: Checking for nontermination...
[2025-03-17 20:22:43,870 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-17 20:22:43,870 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-17 20:22:43,872 INFO  L229       MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2025-03-17 20:22:43,873 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process
[2025-03-17 20:22:43,878 INFO  L148   nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2025-03-17 20:22:43,878 INFO  L160   nArgumentSynthesizer]: Using integer mode.
[2025-03-17 20:22:43,888 INFO  L398          LassoAnalysis]: Proved nontermination for one component.
[2025-03-17 20:22:43,888 INFO  L401          LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~pre4#1=0} Honda state: {ULTIMATE.start_main_#t~pre4#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2025-03-17 20:22:43,894 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0
[2025-03-17 20:22:43,894 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-17 20:22:43,894 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-17 20:22:43,896 INFO  L229       MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2025-03-17 20:22:43,896 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process
[2025-03-17 20:22:43,897 INFO  L148   nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2025-03-17 20:22:43,897 INFO  L160   nArgumentSynthesizer]: Using integer mode.
[2025-03-17 20:22:43,913 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0
[2025-03-17 20:22:43,913 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-17 20:22:43,913 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-17 20:22:43,915 INFO  L229       MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2025-03-17 20:22:43,916 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process
[2025-03-17 20:22:43,917 INFO  L148   nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2025-03-17 20:22:43,917 INFO  L160   nArgumentSynthesizer]: Using integer mode.
[2025-03-17 20:22:43,938 INFO  L405          LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2025-03-17 20:22:43,946 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0
[2025-03-17 20:22:43,946 INFO  L204          LassoAnalysis]: Preferences:
[2025-03-17 20:22:43,946 INFO  L125   ssoRankerPreferences]: Compute integeral hull: false
[2025-03-17 20:22:43,946 INFO  L126   ssoRankerPreferences]: Enable LassoPartitioneer: true
[2025-03-17 20:22:43,946 INFO  L127   ssoRankerPreferences]: Term annotations enabled: false
[2025-03-17 20:22:43,946 INFO  L128   ssoRankerPreferences]: Use exernal solver: false
[2025-03-17 20:22:43,946 INFO  L129   ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-17 20:22:43,946 INFO  L130   ssoRankerPreferences]: Dump SMT script to file: false
[2025-03-17 20:22:43,946 INFO  L131   ssoRankerPreferences]: Path of dumped script: 
[2025-03-17 20:22:43,946 INFO  L132   ssoRankerPreferences]: Filename of dumped script: nested_3.c_Iteration9_Loop
[2025-03-17 20:22:43,946 INFO  L133   ssoRankerPreferences]: MapElimAlgo: Frank
[2025-03-17 20:22:43,946 INFO  L241          LassoAnalysis]: Starting lasso preprocessing...
[2025-03-17 20:22:43,947 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-17 20:22:43,949 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-17 20:22:43,968 INFO  L259          LassoAnalysis]: Preprocessing complete.
[2025-03-17 20:22:43,968 INFO  L451          LassoAnalysis]: Using template 'affine'.
[2025-03-17 20:22:43,968 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-17 20:22:43,968 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-17 20:22:43,970 INFO  L229       MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2025-03-17 20:22:43,971 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process
[2025-03-17 20:22:43,973 INFO  L120   nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2025-03-17 20:22:43,983 INFO  L338   nArgumentSynthesizer]: Template has degree 0.
[2025-03-17 20:22:43,983 INFO  L351   nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2025-03-17 20:22:43,983 INFO  L203   nArgumentSynthesizer]: 1 stem disjuncts
[2025-03-17 20:22:43,983 INFO  L204   nArgumentSynthesizer]: 1 loop disjuncts
[2025-03-17 20:22:43,983 INFO  L205   nArgumentSynthesizer]: 2 template conjuncts.
[2025-03-17 20:22:43,984 INFO  L401   nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2025-03-17 20:22:43,984 INFO  L402   nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2025-03-17 20:22:43,985 INFO  L488          LassoAnalysis]: Proving termination failed for this template and these settings.
[2025-03-17 20:22:43,990 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0
[2025-03-17 20:22:43,990 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-17 20:22:43,990 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-17 20:22:43,992 INFO  L229       MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2025-03-17 20:22:43,993 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process
[2025-03-17 20:22:43,995 INFO  L120   nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2025-03-17 20:22:44,005 INFO  L338   nArgumentSynthesizer]: Template has degree 0.
[2025-03-17 20:22:44,006 INFO  L351   nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2025-03-17 20:22:44,006 INFO  L203   nArgumentSynthesizer]: 1 stem disjuncts
[2025-03-17 20:22:44,006 INFO  L204   nArgumentSynthesizer]: 1 loop disjuncts
[2025-03-17 20:22:44,006 INFO  L205   nArgumentSynthesizer]: 2 template conjuncts.
[2025-03-17 20:22:44,006 INFO  L401   nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2025-03-17 20:22:44,006 INFO  L402   nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2025-03-17 20:22:44,008 INFO  L420   nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2025-03-17 20:22:44,010 INFO  L443   ModelExtractionUtils]: Simplification made 3 calls to the SMT solver.
[2025-03-17 20:22:44,010 INFO  L444   ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero.
[2025-03-17 20:22:44,010 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-17 20:22:44,010 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-17 20:22:44,012 INFO  L229       MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2025-03-17 20:22:44,014 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process
[2025-03-17 20:22:44,015 INFO  L435   nArgumentSynthesizer]: Simplifying supporting invariants...
[2025-03-17 20:22:44,015 INFO  L438   nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2025-03-17 20:22:44,015 INFO  L474          LassoAnalysis]: Proved termination.
[2025-03-17 20:22:44,015 INFO  L476          LassoAnalysis]: Termination argument consisting of:
Ranking function f(ULTIMATE.start_main_~c~0#1) = -2*ULTIMATE.start_main_~c~0#1 + 11
Supporting invariants []
[2025-03-17 20:22:44,021 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0
[2025-03-17 20:22:44,022 INFO  L156   tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2025-03-17 20:22:44,030 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-17 20:22:44,033 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes.
[2025-03-17 20:22:44,038 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements.
[2025-03-17 20:22:44,039 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 20:22:44,039 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-17 20:22:44,039 INFO  L256         TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 2 conjuncts are in the unsatisfiable core
[2025-03-17 20:22:44,040 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-17 20:22:44,049 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes.
[2025-03-17 20:22:44,050 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements.
[2025-03-17 20:22:44,050 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 20:22:44,050 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-17 20:22:44,050 WARN  L254         TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core
[2025-03-17 20:22:44,051 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-17 20:22:44,051 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-17 20:22:44,051 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 
[2025-03-17 20:22:44,051 INFO  L71    iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 70 states and 82 transitions. cyclomatic complexity: 16 Second operand  has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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)
[2025-03-17 20:22:44,057 INFO  L75    iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 70 states and 82 transitions. cyclomatic complexity: 16. Second operand  has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 89 states and 104 transitions. Complement of second has 5 states.
[2025-03-17 20:22:44,057 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 
[2025-03-17 20:22:44,058 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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)
[2025-03-17 20:22:44,058 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions.
[2025-03-17 20:22:44,058 INFO  L84            BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 11 letters. Loop has 1 letters.
[2025-03-17 20:22:44,058 INFO  L116           BuchiAccepts]: Finished buchiAccepts.
[2025-03-17 20:22:44,058 INFO  L689   stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted
[2025-03-17 20:22:44,072 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-17 20:22:44,075 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes.
[2025-03-17 20:22:44,080 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements.
[2025-03-17 20:22:44,080 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 20:22:44,080 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-17 20:22:44,081 INFO  L256         TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 2 conjuncts are in the unsatisfiable core
[2025-03-17 20:22:44,081 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-17 20:22:44,091 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes.
[2025-03-17 20:22:44,092 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements.
[2025-03-17 20:22:44,092 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 20:22:44,092 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-17 20:22:44,092 WARN  L254         TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core
[2025-03-17 20:22:44,093 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-17 20:22:44,093 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-17 20:22:44,093 INFO  L141   lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates 
[2025-03-17 20:22:44,094 INFO  L71    iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 70 states and 82 transitions. cyclomatic complexity: 16 Second operand  has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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)
[2025-03-17 20:22:44,099 INFO  L75    iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 70 states and 82 transitions. cyclomatic complexity: 16. Second operand  has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 89 states and 104 transitions. Complement of second has 5 states.
[2025-03-17 20:22:44,101 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 
[2025-03-17 20:22:44,102 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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)
[2025-03-17 20:22:44,102 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions.
[2025-03-17 20:22:44,102 INFO  L84            BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 11 letters. Loop has 1 letters.
[2025-03-17 20:22:44,102 INFO  L116           BuchiAccepts]: Finished buchiAccepts.
[2025-03-17 20:22:44,102 INFO  L689   stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted
[2025-03-17 20:22:44,110 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-17 20:22:44,113 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes.
[2025-03-17 20:22:44,118 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements.
[2025-03-17 20:22:44,119 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 20:22:44,119 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-17 20:22:44,119 INFO  L256         TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 2 conjuncts are in the unsatisfiable core
[2025-03-17 20:22:44,120 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-17 20:22:44,131 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes.
[2025-03-17 20:22:44,131 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements.
[2025-03-17 20:22:44,131 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 20:22:44,131 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-17 20:22:44,132 WARN  L254         TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core
[2025-03-17 20:22:44,132 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-17 20:22:44,132 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-17 20:22:44,133 INFO  L141   lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates 
[2025-03-17 20:22:44,133 INFO  L71    iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 70 states and 82 transitions. cyclomatic complexity: 16 Second operand  has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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)
[2025-03-17 20:22:44,142 INFO  L75    iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 70 states and 82 transitions. cyclomatic complexity: 16. Second operand  has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 84 states and 96 transitions. Complement of second has 4 states.
[2025-03-17 20:22:44,142 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 
[2025-03-17 20:22:44,143 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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)
[2025-03-17 20:22:44,143 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions.
[2025-03-17 20:22:44,143 INFO  L84            BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 11 letters. Loop has 1 letters.
[2025-03-17 20:22:44,143 INFO  L116           BuchiAccepts]: Finished buchiAccepts.
[2025-03-17 20:22:44,143 INFO  L84            BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 12 letters. Loop has 1 letters.
[2025-03-17 20:22:44,143 INFO  L116           BuchiAccepts]: Finished buchiAccepts.
[2025-03-17 20:22:44,143 INFO  L84            BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 11 letters. Loop has 2 letters.
[2025-03-17 20:22:44,143 INFO  L116           BuchiAccepts]: Finished buchiAccepts.
[2025-03-17 20:22:44,143 INFO  L82        GeneralOperation]: Start removeNonLiveStates. Operand 84 states and 96 transitions.
[2025-03-17 20:22:44,144 INFO  L131   ngComponentsAnalysis]: Automaton has 1 accepting balls. 8
[2025-03-17 20:22:44,144 INFO  L88        GeneralOperation]: Finished removeNonLiveStates. Reduced from 84 states to 62 states and 71 transitions.
[2025-03-17 20:22:44,144 INFO  L87         BuchiClosureNwa]: Accepting states before buchiClosure: 4
[2025-03-17 20:22:44,144 INFO  L106        BuchiClosureNwa]: Accepting states after buchiClosure: 5
[2025-03-17 20:22:44,144 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 62 states and 71 transitions.
[2025-03-17 20:22:44,147 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2025-03-17 20:22:44,147 INFO  L218   hiAutomatonCegarLoop]: Abstraction has 62 states and 71 transitions.
[2025-03-17 20:22:44,147 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 62 states and 71 transitions.
[2025-03-17 20:22:44,148 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 60.
[2025-03-17 20:22:44,151 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 60 states, 60 states have (on average 1.15) internal successors, (69), 59 states have internal predecessors, (69), 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)
[2025-03-17 20:22:44,152 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 69 transitions.
[2025-03-17 20:22:44,152 INFO  L240   hiAutomatonCegarLoop]: Abstraction has 60 states and 69 transitions.
[2025-03-17 20:22:44,152 INFO  L432   stractBuchiCegarLoop]: Abstraction has 60 states and 69 transitions.
[2025-03-17 20:22:44,152 INFO  L338   stractBuchiCegarLoop]: ======== Iteration 10 ============
[2025-03-17 20:22:44,152 INFO  L72            BuchiIsEmpty]: Start buchiIsEmpty. Operand 60 states and 69 transitions.
[2025-03-17 20:22:44,152 INFO  L131   ngComponentsAnalysis]: Automaton has 1 accepting balls. 8
[2025-03-17 20:22:44,152 INFO  L87            BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2025-03-17 20:22:44,152 INFO  L119           BuchiIsEmpty]: Starting construction of run
[2025-03-17 20:22:44,153 INFO  L148   hiAutomatonCegarLoop]: Counterexample stem histogram [36, 6, 6, 2, 1, 1]
[2025-03-17 20:22:44,153 INFO  L149   hiAutomatonCegarLoop]: Counterexample loop histogram [6, 1, 1]
[2025-03-17 20:22:44,153 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(11, 2);call #Ultimate.allocInit(12, 3);assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~pre4#1, main_#t~pre5#1, main_#t~pre6#1, main_~a~0#1, main_~b~0#1, main_~c~0#1;main_~a~0#1 := 6;main_~b~0#1 := 6;main_~c~0#1 := 6;main_~a~0#1 := 0;" "assume main_~a~0#1 < 6;main_~b~0#1 := 0;" "assume main_~b~0#1 < 6;main_~c~0#1 := 0;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume !(main_~c~0#1 < 6);main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1;" "assume main_~b~0#1 < 6;main_~c~0#1 := 0;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume !(main_~c~0#1 < 6);main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1;" "assume main_~b~0#1 < 6;main_~c~0#1 := 0;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume !(main_~c~0#1 < 6);main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1;" "assume main_~b~0#1 < 6;main_~c~0#1 := 0;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume !(main_~c~0#1 < 6);main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1;" "assume main_~b~0#1 < 6;main_~c~0#1 := 0;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume !(main_~c~0#1 < 6);main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1;" "assume main_~b~0#1 < 6;main_~c~0#1 := 0;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume !(main_~c~0#1 < 6);main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1;" "assume !(main_~b~0#1 < 6);main_#t~pre6#1 := 1 + main_~a~0#1;main_~a~0#1 := 1 + main_~a~0#1;havoc main_#t~pre6#1;" "assume main_~a~0#1 < 6;main_~b~0#1 := 0;" 
[2025-03-17 20:22:44,153 INFO  L754   eck$LassoCheckResult]: Loop: "assume main_~b~0#1 < 6;main_~c~0#1 := 0;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume main_~c~0#1 < 6;main_#t~pre4#1 := 1 + main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1;havoc main_#t~pre4#1;" "assume !(main_~c~0#1 < 6);main_#t~pre5#1 := 1 + main_~b~0#1;main_~b~0#1 := 1 + main_~b~0#1;havoc main_#t~pre5#1;" 
[2025-03-17 20:22:44,157 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-17 20:22:44,157 INFO  L85        PathProgramCache]: Analyzing trace with hash 1814432951, now seen corresponding path program 2 times
[2025-03-17 20:22:44,157 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-17 20:22:44,157 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069922370]
[2025-03-17 20:22:44,157 INFO  L95    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2025-03-17 20:22:44,157 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-17 20:22:44,164 INFO  L108    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 52 statements into 2 equivalence classes.
[2025-03-17 20:22:44,181 INFO  L111    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 52 of 52 statements.
[2025-03-17 20:22:44,182 INFO  L114    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2025-03-17 20:22:44,182 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-17 20:22:44,182 INFO  L348             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2025-03-17 20:22:44,184 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes.
[2025-03-17 20:22:44,191 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements.
[2025-03-17 20:22:44,191 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 20:22:44,191 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-17 20:22:44,199 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2025-03-17 20:22:44,201 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-17 20:22:44,201 INFO  L85        PathProgramCache]: Analyzing trace with hash 349941343, now seen corresponding path program 2 times
[2025-03-17 20:22:44,201 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-17 20:22:44,201 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595740318]
[2025-03-17 20:22:44,201 INFO  L95    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2025-03-17 20:22:44,201 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-17 20:22:44,220 INFO  L108    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 8 statements into 2 equivalence classes.
[2025-03-17 20:22:44,221 INFO  L111    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 8 of 8 statements.
[2025-03-17 20:22:44,222 INFO  L114    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2025-03-17 20:22:44,222 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-17 20:22:44,222 INFO  L348             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2025-03-17 20:22:44,222 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes.
[2025-03-17 20:22:44,223 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0
[2025-03-17 20:22:44,226 ERROR L418       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Exception during sending of exit command (exit): Broken pipe
[2025-03-17 20:22:44,226 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0
[2025-03-17 20:22:44,229 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements.
[2025-03-17 20:22:44,229 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 20:22:44,229 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-17 20:22:44,230 ERROR L418       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Exception during sending of exit command (exit): Broken pipe
[2025-03-17 20:22:44,230 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0
[2025-03-17 20:22:44,230 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2025-03-17 20:22:44,231 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-17 20:22:44,231 INFO  L85        PathProgramCache]: Analyzing trace with hash -1730370283, now seen corresponding path program 3 times
[2025-03-17 20:22:44,231 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-17 20:22:44,231 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197261725]
[2025-03-17 20:22:44,231 INFO  L95    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2025-03-17 20:22:44,231 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-17 20:22:44,237 INFO  L108    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 60 statements into 26 equivalence classes.
[2025-03-17 20:22:44,249 INFO  L111    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 26 check-sat command(s) and asserted 60 of 60 statements.
[2025-03-17 20:22:44,249 INFO  L114    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 26 check-sat command(s)
[2025-03-17 20:22:44,249 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-17 20:22:44,249 INFO  L348             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2025-03-17 20:22:44,251 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 60 statements into 1 equivalence classes.
[2025-03-17 20:22:44,258 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 60 of 60 statements.
[2025-03-17 20:22:44,258 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 20:22:44,258 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-17 20:22:44,261 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2025-03-17 20:22:44,306 INFO  L204          LassoAnalysis]: Preferences:
[2025-03-17 20:22:44,306 INFO  L125   ssoRankerPreferences]: Compute integeral hull: false
[2025-03-17 20:22:44,306 INFO  L126   ssoRankerPreferences]: Enable LassoPartitioneer: true
[2025-03-17 20:22:44,306 INFO  L127   ssoRankerPreferences]: Term annotations enabled: false
[2025-03-17 20:22:44,306 INFO  L128   ssoRankerPreferences]: Use exernal solver: true
[2025-03-17 20:22:44,306 INFO  L129   ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-17 20:22:44,306 INFO  L130   ssoRankerPreferences]: Dump SMT script to file: false
[2025-03-17 20:22:44,306 INFO  L131   ssoRankerPreferences]: Path of dumped script: 
[2025-03-17 20:22:44,306 INFO  L132   ssoRankerPreferences]: Filename of dumped script: nested_3.c_Iteration10_Loop
[2025-03-17 20:22:44,306 INFO  L133   ssoRankerPreferences]: MapElimAlgo: Frank
[2025-03-17 20:22:44,306 INFO  L241          LassoAnalysis]: Starting lasso preprocessing...
[2025-03-17 20:22:44,307 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-17 20:22:44,311 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-17 20:22:44,313 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-17 20:22:44,315 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-17 20:22:44,332 INFO  L259          LassoAnalysis]: Preprocessing complete.
[2025-03-17 20:22:44,333 INFO  L365          LassoAnalysis]: Checking for nontermination...
[2025-03-17 20:22:44,333 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-17 20:22:44,333 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-17 20:22:44,335 INFO  L229       MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2025-03-17 20:22:44,336 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process
[2025-03-17 20:22:44,337 INFO  L148   nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2025-03-17 20:22:44,338 INFO  L160   nArgumentSynthesizer]: Using integer mode.
[2025-03-17 20:22:44,356 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0
[2025-03-17 20:22:44,356 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-17 20:22:44,356 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-17 20:22:44,358 INFO  L229       MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2025-03-17 20:22:44,359 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process
[2025-03-17 20:22:44,361 INFO  L148   nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2025-03-17 20:22:44,362 INFO  L160   nArgumentSynthesizer]: Using integer mode.
[2025-03-17 20:22:44,384 INFO  L405          LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2025-03-17 20:22:44,388 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0
[2025-03-17 20:22:44,388 INFO  L204          LassoAnalysis]: Preferences:
[2025-03-17 20:22:44,388 INFO  L125   ssoRankerPreferences]: Compute integeral hull: false
[2025-03-17 20:22:44,388 INFO  L126   ssoRankerPreferences]: Enable LassoPartitioneer: true
[2025-03-17 20:22:44,388 INFO  L127   ssoRankerPreferences]: Term annotations enabled: false
[2025-03-17 20:22:44,388 INFO  L128   ssoRankerPreferences]: Use exernal solver: false
[2025-03-17 20:22:44,388 INFO  L129   ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-17 20:22:44,388 INFO  L130   ssoRankerPreferences]: Dump SMT script to file: false
[2025-03-17 20:22:44,388 INFO  L131   ssoRankerPreferences]: Path of dumped script: 
[2025-03-17 20:22:44,388 INFO  L132   ssoRankerPreferences]: Filename of dumped script: nested_3.c_Iteration10_Loop
[2025-03-17 20:22:44,388 INFO  L133   ssoRankerPreferences]: MapElimAlgo: Frank
[2025-03-17 20:22:44,389 INFO  L241          LassoAnalysis]: Starting lasso preprocessing...
[2025-03-17 20:22:44,389 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-17 20:22:44,394 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-17 20:22:44,395 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-17 20:22:44,397 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-17 20:22:44,413 INFO  L259          LassoAnalysis]: Preprocessing complete.
[2025-03-17 20:22:44,413 INFO  L451          LassoAnalysis]: Using template 'affine'.
[2025-03-17 20:22:44,413 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-17 20:22:44,413 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-17 20:22:44,415 INFO  L229       MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2025-03-17 20:22:44,416 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process
[2025-03-17 20:22:44,417 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
[2025-03-17 20:22:44,427 INFO  L338   nArgumentSynthesizer]: Template has degree 0.
[2025-03-17 20:22:44,427 INFO  L351   nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2025-03-17 20:22:44,427 INFO  L203   nArgumentSynthesizer]: 1 stem disjuncts
[2025-03-17 20:22:44,427 INFO  L204   nArgumentSynthesizer]: 1 loop disjuncts
[2025-03-17 20:22:44,427 INFO  L205   nArgumentSynthesizer]: 2 template conjuncts.
[2025-03-17 20:22:44,428 INFO  L401   nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2025-03-17 20:22:44,428 INFO  L402   nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2025-03-17 20:22:44,429 INFO  L420   nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2025-03-17 20:22:44,431 INFO  L443   ModelExtractionUtils]: Simplification made 3 calls to the SMT solver.
[2025-03-17 20:22:44,431 INFO  L444   ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero.
[2025-03-17 20:22:44,431 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-17 20:22:44,431 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-17 20:22:44,433 INFO  L229       MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2025-03-17 20:22:44,434 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process
[2025-03-17 20:22:44,435 INFO  L435   nArgumentSynthesizer]: Simplifying supporting invariants...
[2025-03-17 20:22:44,435 INFO  L438   nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2025-03-17 20:22:44,435 INFO  L474          LassoAnalysis]: Proved termination.
[2025-03-17 20:22:44,435 INFO  L476          LassoAnalysis]: Termination argument consisting of:
Ranking function f(ULTIMATE.start_main_~b~0#1) = -2*ULTIMATE.start_main_~b~0#1 + 11
Supporting invariants []
[2025-03-17 20:22:44,441 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0
[2025-03-17 20:22:44,442 INFO  L156   tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2025-03-17 20:22:44,449 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-17 20:22:44,461 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes.
[2025-03-17 20:22:44,475 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements.
[2025-03-17 20:22:44,475 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 20:22:44,475 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-17 20:22:44,476 INFO  L256         TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 2 conjuncts are in the unsatisfiable core
[2025-03-17 20:22:44,477 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-17 20:22:44,520 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes.
[2025-03-17 20:22:44,523 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements.
[2025-03-17 20:22:44,523 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 20:22:44,523 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-17 20:22:44,524 INFO  L256         TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjuncts are in the unsatisfiable core
[2025-03-17 20:22:44,524 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-17 20:22:44,551 INFO  L134       CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked.
[2025-03-17 20:22:44,552 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 
[2025-03-17 20:22:44,552 INFO  L71    iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 60 states and 69 transitions. cyclomatic complexity: 11 Second operand  has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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)
[2025-03-17 20:22:44,564 INFO  L75    iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 60 states and 69 transitions. cyclomatic complexity: 11. Second operand  has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) Result 153 states and 177 transitions. Complement of second has 7 states.
[2025-03-17 20:22:44,565 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 
[2025-03-17 20:22:44,565 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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)
[2025-03-17 20:22:44,565 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions.
[2025-03-17 20:22:44,566 INFO  L84            BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 52 letters. Loop has 8 letters.
[2025-03-17 20:22:44,566 INFO  L116           BuchiAccepts]: Finished buchiAccepts.
[2025-03-17 20:22:44,566 INFO  L689   stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted
[2025-03-17 20:22:44,574 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-17 20:22:44,581 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes.
[2025-03-17 20:22:44,600 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements.
[2025-03-17 20:22:44,600 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 20:22:44,600 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-17 20:22:44,601 INFO  L256         TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 2 conjuncts are in the unsatisfiable core
[2025-03-17 20:22:44,602 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-17 20:22:44,649 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes.
[2025-03-17 20:22:44,652 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements.
[2025-03-17 20:22:44,652 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 20:22:44,652 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-17 20:22:44,652 INFO  L256         TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjuncts are in the unsatisfiable core
[2025-03-17 20:22:44,653 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-17 20:22:44,679 INFO  L134       CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked.
[2025-03-17 20:22:44,679 INFO  L141   lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates 
[2025-03-17 20:22:44,680 INFO  L71    iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 60 states and 69 transitions. cyclomatic complexity: 11 Second operand  has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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)
[2025-03-17 20:22:44,690 INFO  L75    iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 60 states and 69 transitions. cyclomatic complexity: 11. Second operand  has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) Result 153 states and 177 transitions. Complement of second has 7 states.
[2025-03-17 20:22:44,690 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 
[2025-03-17 20:22:44,691 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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)
[2025-03-17 20:22:44,691 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions.
[2025-03-17 20:22:44,691 INFO  L84            BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 52 letters. Loop has 8 letters.
[2025-03-17 20:22:44,691 INFO  L116           BuchiAccepts]: Finished buchiAccepts.
[2025-03-17 20:22:44,691 INFO  L689   stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted
[2025-03-17 20:22:44,700 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-17 20:22:44,707 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes.
[2025-03-17 20:22:44,721 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements.
[2025-03-17 20:22:44,721 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 20:22:44,721 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-17 20:22:44,722 INFO  L256         TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 2 conjuncts are in the unsatisfiable core
[2025-03-17 20:22:44,723 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-17 20:22:44,780 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes.
[2025-03-17 20:22:44,782 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements.
[2025-03-17 20:22:44,782 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 20:22:44,783 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-17 20:22:44,783 INFO  L256         TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjuncts are in the unsatisfiable core
[2025-03-17 20:22:44,783 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-17 20:22:44,807 INFO  L134       CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked.
[2025-03-17 20:22:44,808 INFO  L141   lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates 
[2025-03-17 20:22:44,808 INFO  L71    iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 60 states and 69 transitions. cyclomatic complexity: 11 Second operand  has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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)
[2025-03-17 20:22:44,824 INFO  L75    iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 60 states and 69 transitions. cyclomatic complexity: 11. Second operand  has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) Result 111 states and 129 transitions. Complement of second has 6 states.
[2025-03-17 20:22:44,824 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 
[2025-03-17 20:22:44,824 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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)
[2025-03-17 20:22:44,825 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions.
[2025-03-17 20:22:44,825 INFO  L84            BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 52 letters. Loop has 8 letters.
[2025-03-17 20:22:44,825 INFO  L116           BuchiAccepts]: Finished buchiAccepts.
[2025-03-17 20:22:44,825 INFO  L84            BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 60 letters. Loop has 8 letters.
[2025-03-17 20:22:44,825 INFO  L116           BuchiAccepts]: Finished buchiAccepts.
[2025-03-17 20:22:44,825 INFO  L84            BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 52 letters. Loop has 16 letters.
[2025-03-17 20:22:44,825 INFO  L116           BuchiAccepts]: Finished buchiAccepts.
[2025-03-17 20:22:44,825 INFO  L82        GeneralOperation]: Start removeNonLiveStates. Operand 111 states and 129 transitions.
[2025-03-17 20:22:44,826 INFO  L131   ngComponentsAnalysis]: Automaton has 0 accepting balls. 0
[2025-03-17 20:22:44,826 INFO  L88        GeneralOperation]: Finished removeNonLiveStates. Reduced from 111 states to 0 states and 0 transitions.
[2025-03-17 20:22:44,826 INFO  L87         BuchiClosureNwa]: Accepting states before buchiClosure: 0
[2025-03-17 20:22:44,826 INFO  L106        BuchiClosureNwa]: Accepting states after buchiClosure: 0
[2025-03-17 20:22:44,826 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions.
[2025-03-17 20:22:44,826 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2025-03-17 20:22:44,826 INFO  L218   hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions.
[2025-03-17 20:22:44,826 INFO  L240   hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions.
[2025-03-17 20:22:44,826 INFO  L432   stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions.
[2025-03-17 20:22:44,826 INFO  L338   stractBuchiCegarLoop]: ======== Iteration 11 ============
[2025-03-17 20:22:44,826 INFO  L72            BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions.
[2025-03-17 20:22:44,826 INFO  L131   ngComponentsAnalysis]: Automaton has 0 accepting balls. 0
[2025-03-17 20:22:44,826 INFO  L87            BuchiIsEmpty]: Finished buchiIsEmpty Result is true
[2025-03-17 20:22:44,833 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.03 08:22:44 BoogieIcfgContainer
[2025-03-17 20:22:44,834 INFO  L131        PluginConnector]: ------------------------ END BuchiAutomizer----------------------------
[2025-03-17 20:22:44,834 INFO  L112        PluginConnector]: ------------------------Witness Printer----------------------------
[2025-03-17 20:22:44,834 INFO  L270        PluginConnector]: Initializing Witness Printer...
[2025-03-17 20:22:44,834 INFO  L274        PluginConnector]: Witness Printer initialized
[2025-03-17 20:22:44,835 INFO  L184        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 08:22:40" (3/4) ...
[2025-03-17 20:22:44,837 INFO  L149         WitnessPrinter]: No result that supports witness generation found
[2025-03-17 20:22:44,837 INFO  L131        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2025-03-17 20:22:44,838 INFO  L158              Benchmark]: Toolchain (without parser) took 4407.47ms. Allocated memory is still 167.8MB. Free memory was 134.7MB in the beginning and 64.8MB in the end (delta: 69.9MB). Peak memory consumption was 69.2MB. Max. memory is 16.1GB.
[2025-03-17 20:22:44,839 INFO  L158              Benchmark]: CDTParser took 0.24ms. Allocated memory is still 201.3MB. Free memory is still 126.0MB. There was no memory consumed. Max. memory is 16.1GB.
[2025-03-17 20:22:44,839 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 129.35ms. Allocated memory is still 167.8MB. Free memory was 134.7MB in the beginning and 124.4MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2025-03-17 20:22:44,839 INFO  L158              Benchmark]: Boogie Procedure Inliner took 16.09ms. Allocated memory is still 167.8MB. Free memory was 124.4MB in the beginning and 123.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB.
[2025-03-17 20:22:44,839 INFO  L158              Benchmark]: Boogie Preprocessor took 17.19ms. Allocated memory is still 167.8MB. Free memory was 123.1MB in the beginning and 122.2MB in the end (delta: 840.8kB). There was no memory consumed. Max. memory is 16.1GB.
[2025-03-17 20:22:44,839 INFO  L158              Benchmark]: IcfgBuilder took 161.77ms. Allocated memory is still 167.8MB. Free memory was 122.2MB in the beginning and 111.9MB in the end (delta: 10.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2025-03-17 20:22:44,839 INFO  L158              Benchmark]: BuchiAutomizer took 4076.14ms. Allocated memory is still 167.8MB. Free memory was 111.9MB in the beginning and 64.8MB in the end (delta: 47.1MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB.
[2025-03-17 20:22:44,839 INFO  L158              Benchmark]: Witness Printer took 3.08ms. Allocated memory is still 167.8MB. Free memory was 64.8MB in the beginning and 64.8MB in the end (delta: 46.2kB). There was no memory consumed. Max. memory is 16.1GB.
[2025-03-17 20:22:44,840 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.24ms. Allocated memory is still 201.3MB. Free memory is still 126.0MB. There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 129.35ms. Allocated memory is still 167.8MB. Free memory was 134.7MB in the beginning and 124.4MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
 * Boogie Procedure Inliner took 16.09ms. Allocated memory is still 167.8MB. Free memory was 124.4MB in the beginning and 123.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB.
 * Boogie Preprocessor took 17.19ms. Allocated memory is still 167.8MB. Free memory was 123.1MB in the beginning and 122.2MB in the end (delta: 840.8kB). There was no memory consumed. Max. memory is 16.1GB.
 * IcfgBuilder took 161.77ms. Allocated memory is still 167.8MB. Free memory was 122.2MB in the beginning and 111.9MB in the end (delta: 10.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
 * BuchiAutomizer took 4076.14ms. Allocated memory is still 167.8MB. Free memory was 111.9MB in the beginning and 64.8MB in the end (delta: 47.1MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB.
 * Witness Printer took 3.08ms. Allocated memory is still 167.8MB. Free memory was 64.8MB in the beginning and 64.8MB in the end (delta: 46.2kB). 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 10 terminating modules (5 trivial, 3 deterministic, 2 nondeterministic). One deterministic module has affine ranking function (((long long) -2 * a) + 11) and consists of 3 locations. One deterministic module has affine ranking function (((long long) -2 * b) + 11) and consists of 4 locations. One deterministic module has affine ranking function (((long long) -2 * c) + 11) and consists of 3 locations. One nondeterministic module has affine ranking function (((long long) -2 * c) + 11) and consists of 3 locations. One nondeterministic module has affine ranking function (((long long) -2 * b) + 11) and consists of 4 locations. 5 modules have a trivial ranking function, the largest among these consists of 10 locations.
  - StatisticsResult: Timing statistics
    BüchiAutomizer plugin needed 4.0s and 11 iterations.  TraceHistogramMax:36. Analysis of lassos took 2.7s. Construction of modules took 0.1s. Büchi inclusion checks took 1.0s. Highest rank in rank-based complementation 3. Minimization of det autom 6. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 124 StatesRemovedByMinimization, 6 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, 2, 0, 0].	InterpolantCoveringCapabilityFinite: 0/0	InterpolantCoveringCapabilityBuchi: 924/924	HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 85 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 76 mSDsluCounter, 94 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 24 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 113 IncrementalHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 70 mSDtfsCounter, 113 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown	LassoAnalysisResults: nont0 unkn0 SFLI5 SFLT5 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: unsat Degree: 0 Time: 19ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4	LassoNonterminationAnalysisSatUnbounded: 0	LassoNonterminationAnalysisUnsat: 5	LassoNonterminationAnalysisUnknown: 0	LassoNonterminationAnalysisTime: 0.3s	InitialAbstractionConstructionTime: 0.0s
  - TerminationAnalysisResult: Termination proven
    Buchi Automizer proved that your program is terminating
RESULT: Ultimate proved your program to be correct!
[2025-03-17 20:22:44,849 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0
[2025-03-17 20:22:45,054 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2025-03-17 20:22:45,255 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2025-03-17 20:22:45,455 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2025-03-17 20:22:45,657 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/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