./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 798a7b37
Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/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-?-798a7b3-m
[2025-03-04 16:05:44,942 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-03-04 16:05:44,992 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf
[2025-03-04 16:05:44,995 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-03-04 16:05:44,995 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-03-04 16:05:44,995 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG
[2025-03-04 16:05:45,018 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-03-04 16:05:45,019 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-03-04 16:05:45,019 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-03-04 16:05:45,020 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2025-03-04 16:05:45,020 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2025-03-04 16:05:45,021 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-03-04 16:05:45,021 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-03-04 16:05:45,021 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-03-04 16:05:45,021 INFO  L151        SettingsManager]: Preferences of BuchiAutomizer differ from their defaults:
[2025-03-04 16:05:45,021 INFO  L153        SettingsManager]:  * NCSB implementation=INTSET_LAZY3
[2025-03-04 16:05:45,021 INFO  L153        SettingsManager]:  * Use old map elimination=false
[2025-03-04 16:05:45,022 INFO  L153        SettingsManager]:  * Use external solver (rank synthesis)=false
[2025-03-04 16:05:45,022 INFO  L153        SettingsManager]:  * Use only trivial implications for array writes=true
[2025-03-04 16:05:45,022 INFO  L153        SettingsManager]:  * Rank analysis=LINEAR_WITH_GUESSES
[2025-03-04 16:05:45,022 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2025-03-04 16:05:45,022 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=ASSUME
[2025-03-04 16:05:45,022 INFO  L153        SettingsManager]:  * sizeof long=4
[2025-03-04 16:05:45,022 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2025-03-04 16:05:45,022 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2025-03-04 16:05:45,022 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2025-03-04 16:05:45,022 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=ASSUME
[2025-03-04 16:05:45,022 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=ASSUME
[2025-03-04 16:05:45,022 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=ASSUME
[2025-03-04 16:05:45,023 INFO  L153        SettingsManager]:  * Check unreachability of reach_error function=false
[2025-03-04 16:05:45,023 INFO  L153        SettingsManager]:  * sizeof long double=12
[2025-03-04 16:05:45,023 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2025-03-04 16:05:45,023 INFO  L153        SettingsManager]:  * Assume nondeterminstic values are in range=false
[2025-03-04 16:05:45,023 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2025-03-04 16:05:45,023 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2025-03-04 16:05:45,023 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2025-03-04 16:05:45,024 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-03-04 16:05:45,024 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-03-04 16:05:45,024 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-03-04 16:05:45,024 INFO  L151        SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2025-03-04 16:05:45,024 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
[2025-03-04 16:05:45,360 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-03-04 16:05:45,367 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-03-04 16:05:45,368 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-03-04 16:05:45,369 INFO  L270        PluginConnector]: Initializing CDTParser...
[2025-03-04 16:05:45,369 INFO  L274        PluginConnector]: CDTParser initialized
[2025-03-04 16:05:45,371 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-simple/nested_3.c
[2025-03-04 16:05:46,565 INFO  L533              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff5b46aff/25c2561a8cf64538b199ab92433232b7/FLAG59da123a9
[2025-03-04 16:05:46,764 INFO  L384              CDTParser]: Found 1 translation units.
[2025-03-04 16:05:46,780 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-simple/nested_3.c
[2025-03-04 16:05:46,801 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff5b46aff/25c2561a8cf64538b199ab92433232b7/FLAG59da123a9
[2025-03-04 16:05:47,119 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff5b46aff/25c2561a8cf64538b199ab92433232b7
[2025-03-04 16:05:47,121 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-03-04 16:05:47,122 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2025-03-04 16:05:47,123 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2025-03-04 16:05:47,123 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2025-03-04 16:05:47,126 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2025-03-04 16:05:47,126 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 04:05:47" (1/1) ...
[2025-03-04 16:05:47,128 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7259d02c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:05:47, skipping insertion in model container
[2025-03-04 16:05:47,128 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 04:05:47" (1/1) ...
[2025-03-04 16:05:47,137 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2025-03-04 16:05:47,225 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-03-04 16:05:47,231 INFO  L200         MainTranslator]: Completed pre-run
[2025-03-04 16:05:47,239 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-03-04 16:05:47,247 INFO  L204         MainTranslator]: Completed translation
[2025-03-04 16:05:47,248 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:05:47 WrapperNode
[2025-03-04 16:05:47,248 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2025-03-04 16:05:47,248 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2025-03-04 16:05:47,249 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2025-03-04 16:05:47,249 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2025-03-04 16:05:47,252 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:05:47" (1/1) ...
[2025-03-04 16:05:47,256 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:05:47" (1/1) ...
[2025-03-04 16:05:47,264 INFO  L138                Inliner]: procedures = 10, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 32
[2025-03-04 16:05:47,265 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2025-03-04 16:05:47,265 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-03-04 16:05:47,265 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-03-04 16:05:47,265 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-03-04 16:05:47,270 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:05:47" (1/1) ...
[2025-03-04 16:05:47,270 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:05:47" (1/1) ...
[2025-03-04 16:05:47,271 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:05:47" (1/1) ...
[2025-03-04 16:05:47,276 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2025-03-04 16:05:47,277 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:05:47" (1/1) ...
[2025-03-04 16:05:47,277 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:05:47" (1/1) ...
[2025-03-04 16:05:47,278 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:05:47" (1/1) ...
[2025-03-04 16:05:47,279 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:05:47" (1/1) ...
[2025-03-04 16:05:47,279 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:05:47" (1/1) ...
[2025-03-04 16:05:47,279 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:05:47" (1/1) ...
[2025-03-04 16:05:47,280 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-03-04 16:05:47,281 INFO  L112        PluginConnector]: ------------------------IcfgBuilder----------------------------
[2025-03-04 16:05:47,281 INFO  L270        PluginConnector]: Initializing IcfgBuilder...
[2025-03-04 16:05:47,281 INFO  L274        PluginConnector]: IcfgBuilder initialized
[2025-03-04 16:05:47,282 INFO  L184        PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:05:47" (1/1) ...
[2025-03-04 16:05:47,285 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-04 16:05:47,294 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-04 16:05:47,305 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2025-03-04 16:05:47,310 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process
[2025-03-04 16:05:47,324 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2025-03-04 16:05:47,324 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2025-03-04 16:05:47,324 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2025-03-04 16:05:47,324 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2025-03-04 16:05:47,362 INFO  L256             CfgBuilder]: Building ICFG
[2025-03-04 16:05:47,363 INFO  L286             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-03-04 16:05:47,429 INFO  L?                        ?]: Removed 5 outVars from TransFormulas that were not future-live.
[2025-03-04 16:05:47,429 INFO  L307             CfgBuilder]: Performing block encoding
[2025-03-04 16:05:47,435 INFO  L331             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2025-03-04 16:05:47,436 INFO  L336             CfgBuilder]: Removed 0 assume(true) statements.
[2025-03-04 16:05:47,436 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 04:05:47 BoogieIcfgContainer
[2025-03-04 16:05:47,436 INFO  L131        PluginConnector]: ------------------------ END IcfgBuilder----------------------------
[2025-03-04 16:05:47,437 INFO  L112        PluginConnector]: ------------------------BuchiAutomizer----------------------------
[2025-03-04 16:05:47,437 INFO  L270        PluginConnector]: Initializing BuchiAutomizer...
[2025-03-04 16:05:47,440 INFO  L274        PluginConnector]: BuchiAutomizer initialized
[2025-03-04 16:05:47,441 INFO  L99          BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2025-03-04 16:05:47,441 INFO  L184        PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 04.03 04:05:47" (1/3) ...
[2025-03-04 16:05:47,442 INFO  L204        PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@418b99c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 04.03 04:05:47, skipping insertion in model container
[2025-03-04 16:05:47,442 INFO  L99          BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2025-03-04 16:05:47,442 INFO  L184        PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 04:05:47" (2/3) ...
[2025-03-04 16:05:47,443 INFO  L204        PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@418b99c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 04.03 04:05:47, skipping insertion in model container
[2025-03-04 16:05:47,443 INFO  L99          BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2025-03-04 16:05:47,443 INFO  L184        PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 04:05:47" (3/3) ...
[2025-03-04 16:05:47,444 INFO  L363   chiAutomizerObserver]: Analyzing ICFG nested_3.c
[2025-03-04 16:05:47,475 INFO  L306   stractBuchiCegarLoop]: Interprodecural is true
[2025-03-04 16:05:47,475 INFO  L307   stractBuchiCegarLoop]: Hoare is None
[2025-03-04 16:05:47,475 INFO  L308   stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates
[2025-03-04 16:05:47,475 INFO  L309   stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE
[2025-03-04 16:05:47,475 INFO  L310   stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2025-03-04 16:05:47,475 INFO  L311   stractBuchiCegarLoop]: Difference is false
[2025-03-04 16:05:47,476 INFO  L312   stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA
[2025-03-04 16:05:47,476 INFO  L316   stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ========
[2025-03-04 16:05:47,479 INFO  L72            BuchiIsEmpty]: Start buchiIsEmpty. Operand  has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-04 16:05:47,489 INFO  L131   ngComponentsAnalysis]: Automaton has 1 accepting balls. 3
[2025-03-04 16:05:47,490 INFO  L87            BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2025-03-04 16:05:47,490 INFO  L119           BuchiIsEmpty]: Starting construction of run
[2025-03-04 16:05:47,493 INFO  L148   hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1]
[2025-03-04 16:05:47,493 INFO  L149   hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1]
[2025-03-04 16:05:47,494 INFO  L338   stractBuchiCegarLoop]: ======== Iteration 1 ============
[2025-03-04 16:05:47,494 INFO  L72            BuchiIsEmpty]: Start buchiIsEmpty. Operand  has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-04 16:05:47,495 INFO  L131   ngComponentsAnalysis]: Automaton has 1 accepting balls. 3
[2025-03-04 16:05:47,495 INFO  L87            BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2025-03-04 16:05:47,495 INFO  L119           BuchiIsEmpty]: Starting construction of run
[2025-03-04 16:05:47,495 INFO  L148   hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1]
[2025-03-04 16:05:47,496 INFO  L149   hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1]
[2025-03-04 16:05:47,501 INFO  L752   eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~pre4#1, main_#t~pre5#1, main_#t~pre6#1, main_~a~0#1, main_~b~0#1, main_~c~0#1;main_~a~0#1 := 6;main_~b~0#1 := 6;main_~c~0#1 := 6;main_~a~0#1 := 0;" 
[2025-03-04 16:05:47,501 INFO  L754   eck$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;" 
[2025-03-04 16:05:47,505 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-04 16:05:47,505 INFO  L85        PathProgramCache]: Analyzing trace with hash 1376, now seen corresponding path program 1 times
[2025-03-04 16:05:47,510 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-04 16:05:47,510 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520157639]
[2025-03-04 16:05:47,511 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-04 16:05:47,512 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-04 16:05:47,556 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes.
[2025-03-04 16:05:47,566 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements.
[2025-03-04 16:05:47,566 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-04 16:05:47,567 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-04 16:05:47,567 INFO  L348             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2025-03-04 16:05:47,571 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes.
[2025-03-04 16:05:47,574 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements.
[2025-03-04 16:05:47,575 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-04 16:05:47,575 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-04 16:05:47,586 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2025-03-04 16:05:47,588 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-04 16:05:47,588 INFO  L85        PathProgramCache]: Analyzing trace with hash 1277, now seen corresponding path program 1 times
[2025-03-04 16:05:47,588 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-04 16:05:47,588 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251583388]
[2025-03-04 16:05:47,589 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-04 16:05:47,589 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-04 16:05:47,594 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes.
[2025-03-04 16:05:47,600 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements.
[2025-03-04 16:05:47,601 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-04 16:05:47,601 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-04 16:05:47,651 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-04 16:05:47,652 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-04 16:05:47,653 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251583388]
[2025-03-04 16:05:47,653 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251583388] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-04 16:05:47,654 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-04 16:05:47,654 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2025-03-04 16:05:47,655 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780637787]
[2025-03-04 16:05:47,655 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-04 16:05:47,658 INFO  L769   eck$LassoCheckResult]: loop already infeasible
[2025-03-04 16:05:47,658 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-04 16:05:47,678 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2025-03-04 16:05:47,678 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-03-04 16:05:47,680 INFO  L87              Difference]: Start difference. First operand  has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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)
[2025-03-04 16:05:47,700 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-04 16:05:47,700 INFO  L93              Difference]: Finished difference Result 12 states and 15 transitions.
[2025-03-04 16:05:47,701 INFO  L82        GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 15 transitions.
[2025-03-04 16:05:47,702 INFO  L131   ngComponentsAnalysis]: Automaton has 1 accepting balls. 5
[2025-03-04 16:05:47,707 INFO  L88        GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 7 states and 10 transitions.
[2025-03-04 16:05:47,709 INFO  L87         BuchiClosureNwa]: Accepting states before buchiClosure: 7
[2025-03-04 16:05:47,709 INFO  L106        BuchiClosureNwa]: Accepting states after buchiClosure: 7
[2025-03-04 16:05:47,710 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions.
[2025-03-04 16:05:47,710 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2025-03-04 16:05:47,710 INFO  L218   hiAutomatonCegarLoop]: Abstraction has 7 states and 10 transitions.
[2025-03-04 16:05:47,718 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions.
[2025-03-04 16:05:47,723 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6.
[2025-03-04 16:05:47,724 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)
[2025-03-04 16:05:47,724 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions.
[2025-03-04 16:05:47,725 INFO  L240   hiAutomatonCegarLoop]: Abstraction has 6 states and 8 transitions.
[2025-03-04 16:05:47,726 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2025-03-04 16:05:47,728 INFO  L432   stractBuchiCegarLoop]: Abstraction has 6 states and 8 transitions.
[2025-03-04 16:05:47,728 INFO  L338   stractBuchiCegarLoop]: ======== Iteration 2 ============
[2025-03-04 16:05:47,728 INFO  L72            BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions.
[2025-03-04 16:05:47,728 INFO  L131   ngComponentsAnalysis]: Automaton has 1 accepting balls. 4
[2025-03-04 16:05:47,728 INFO  L87            BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2025-03-04 16:05:47,728 INFO  L119           BuchiIsEmpty]: Starting construction of run
[2025-03-04 16:05:47,728 INFO  L148   hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1]
[2025-03-04 16:05:47,728 INFO  L149   hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1]
[2025-03-04 16:05:47,729 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;" 
[2025-03-04 16:05:47,729 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;" 
[2025-03-04 16:05:47,729 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-04 16:05:47,729 INFO  L85        PathProgramCache]: Analyzing trace with hash 1376, now seen corresponding path program 2 times
[2025-03-04 16:05:47,729 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-04 16:05:47,729 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251834128]
[2025-03-04 16:05:47,729 INFO  L95    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2025-03-04 16:05:47,730 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-04 16:05:47,734 INFO  L108    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 2 statements into 1 equivalence classes.
[2025-03-04 16:05:47,737 INFO  L111    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 2 of 2 statements.
[2025-03-04 16:05:47,738 INFO  L114    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2025-03-04 16:05:47,739 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-04 16:05:47,739 INFO  L348             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2025-03-04 16:05:47,741 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes.
[2025-03-04 16:05:47,744 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements.
[2025-03-04 16:05:47,746 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-04 16:05:47,746 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-04 16:05:47,747 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2025-03-04 16:05:47,748 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-04 16:05:47,748 INFO  L85        PathProgramCache]: Analyzing trace with hash 1230303, now seen corresponding path program 1 times
[2025-03-04 16:05:47,748 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-04 16:05:47,748 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148034711]
[2025-03-04 16:05:47,748 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-04 16:05:47,748 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-04 16:05:47,751 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes.
[2025-03-04 16:05:47,755 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements.
[2025-03-04 16:05:47,756 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-04 16:05:47,756 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-04 16:05:47,769 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-04 16:05:47,769 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-04 16:05:47,769 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148034711]
[2025-03-04 16:05:47,769 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148034711] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-04 16:05:47,769 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-04 16:05:47,769 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2025-03-04 16:05:47,770 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344536594]
[2025-03-04 16:05:47,770 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-04 16:05:47,770 INFO  L769   eck$LassoCheckResult]: loop already infeasible
[2025-03-04 16:05:47,770 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-04 16:05:47,770 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2025-03-04 16:05:47,770 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-03-04 16:05:47,771 INFO  L87              Difference]: Start difference. First operand 6 states and 8 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)
[2025-03-04 16:05:47,776 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-04 16:05:47,776 INFO  L93              Difference]: Finished difference Result 7 states and 9 transitions.
[2025-03-04 16:05:47,777 INFO  L82        GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 9 transitions.
[2025-03-04 16:05:47,777 INFO  L131   ngComponentsAnalysis]: Automaton has 1 accepting balls. 5
[2025-03-04 16:05:47,777 INFO  L88        GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 7 states and 9 transitions.
[2025-03-04 16:05:47,777 INFO  L87         BuchiClosureNwa]: Accepting states before buchiClosure: 7
[2025-03-04 16:05:47,777 INFO  L106        BuchiClosureNwa]: Accepting states after buchiClosure: 7
[2025-03-04 16:05:47,777 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 7 states and 9 transitions.
[2025-03-04 16:05:47,778 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2025-03-04 16:05:47,778 INFO  L218   hiAutomatonCegarLoop]: Abstraction has 7 states and 9 transitions.
[2025-03-04 16:05:47,778 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7 states and 9 transitions.
[2025-03-04 16:05:47,778 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7.
[2025-03-04 16:05:47,779 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 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)
[2025-03-04 16:05:47,780 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions.
[2025-03-04 16:05:47,780 INFO  L240   hiAutomatonCegarLoop]: Abstraction has 7 states and 9 transitions.
[2025-03-04 16:05:47,780 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2025-03-04 16:05:47,781 INFO  L432   stractBuchiCegarLoop]: Abstraction has 7 states and 9 transitions.
[2025-03-04 16:05:47,781 INFO  L338   stractBuchiCegarLoop]: ======== Iteration 3 ============
[2025-03-04 16:05:47,781 INFO  L72            BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions.
[2025-03-04 16:05:47,781 INFO  L131   ngComponentsAnalysis]: Automaton has 1 accepting balls. 5
[2025-03-04 16:05:47,781 INFO  L87            BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2025-03-04 16:05:47,781 INFO  L119           BuchiIsEmpty]: Starting construction of run
[2025-03-04 16:05:47,784 INFO  L148   hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1]
[2025-03-04 16:05:47,784 INFO  L149   hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1]
[2025-03-04 16:05:47,784 INFO  L752   eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~pre4#1, main_#t~pre5#1, main_#t~pre6#1, main_~a~0#1, main_~b~0#1, main_~c~0#1;main_~a~0#1 := 6;main_~b~0#1 := 6;main_~c~0#1 := 6;main_~a~0#1 := 0;" 
[2025-03-04 16:05:47,784 INFO  L754   eck$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;" 
[2025-03-04 16:05:47,784 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-04 16:05:47,784 INFO  L85        PathProgramCache]: Analyzing trace with hash 1376, now seen corresponding path program 3 times
[2025-03-04 16:05:47,784 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-04 16:05:47,784 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288723130]
[2025-03-04 16:05:47,784 INFO  L95    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2025-03-04 16:05:47,784 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-04 16:05:47,789 INFO  L108    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 2 statements into 1 equivalence classes.
[2025-03-04 16:05:47,791 INFO  L111    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 2 of 2 statements.
[2025-03-04 16:05:47,791 INFO  L114    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s)
[2025-03-04 16:05:47,791 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-04 16:05:47,791 INFO  L348             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2025-03-04 16:05:47,792 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes.
[2025-03-04 16:05:47,794 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements.
[2025-03-04 16:05:47,794 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-04 16:05:47,794 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-04 16:05:47,796 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2025-03-04 16:05:47,796 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-04 16:05:47,796 INFO  L85        PathProgramCache]: Analyzing trace with hash 38140391, now seen corresponding path program 1 times
[2025-03-04 16:05:47,796 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-04 16:05:47,796 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562329583]
[2025-03-04 16:05:47,797 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-04 16:05:47,797 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-04 16:05:47,799 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes.
[2025-03-04 16:05:47,801 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements.
[2025-03-04 16:05:47,801 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-04 16:05:47,802 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-04 16:05:47,835 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-04 16:05:47,836 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-04 16:05:47,836 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562329583]
[2025-03-04 16:05:47,836 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562329583] provided 0 perfect and 1 imperfect interpolant sequences
[2025-03-04 16:05:47,836 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1368095130]
[2025-03-04 16:05:47,836 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-04 16:05:47,836 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-03-04 16:05:47,836 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-04 16:05:47,838 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)
[2025-03-04 16:05:47,839 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2025-03-04 16:05:47,866 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes.
[2025-03-04 16:05:47,872 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements.
[2025-03-04 16:05:47,872 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-04 16:05:47,872 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-04 16:05:47,873 INFO  L256         TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 3 conjuncts are in the unsatisfiable core
[2025-03-04 16:05:47,874 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-04 16:05:47,901 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-04 16:05:47,901 INFO  L312         TraceCheckSpWp]: Computing backward predicates...
[2025-03-04 16:05:47,923 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-04 16:05:47,924 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1368095130] provided 0 perfect and 2 imperfect interpolant sequences
[2025-03-04 16:05:47,924 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2025-03-04 16:05:47,924 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6
[2025-03-04 16:05:47,924 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47019335]
[2025-03-04 16:05:47,924 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2025-03-04 16:05:47,924 INFO  L769   eck$LassoCheckResult]: loop already infeasible
[2025-03-04 16:05:47,925 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-04 16:05:47,925 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-03-04 16:05:47,925 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30
[2025-03-04 16:05:47,925 INFO  L87              Difference]: Start difference. First operand 7 states and 9 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)
[2025-03-04 16:05:47,941 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-04 16:05:47,941 INFO  L93              Difference]: Finished difference Result 10 states and 12 transitions.
[2025-03-04 16:05:47,942 INFO  L82        GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 12 transitions.
[2025-03-04 16:05:47,942 INFO  L131   ngComponentsAnalysis]: Automaton has 1 accepting balls. 8
[2025-03-04 16:05:47,943 INFO  L88        GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 10 states and 12 transitions.
[2025-03-04 16:05:47,943 INFO  L87         BuchiClosureNwa]: Accepting states before buchiClosure: 10
[2025-03-04 16:05:47,943 INFO  L106        BuchiClosureNwa]: Accepting states after buchiClosure: 10
[2025-03-04 16:05:47,943 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 10 states and 12 transitions.
[2025-03-04 16:05:47,943 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2025-03-04 16:05:47,944 INFO  L218   hiAutomatonCegarLoop]: Abstraction has 10 states and 12 transitions.
[2025-03-04 16:05:47,944 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10 states and 12 transitions.
[2025-03-04 16:05:47,944 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10.
[2025-03-04 16:05:47,944 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 10 states, 10 states have (on average 1.2) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-04 16:05:47,944 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions.
[2025-03-04 16:05:47,945 INFO  L240   hiAutomatonCegarLoop]: Abstraction has 10 states and 12 transitions.
[2025-03-04 16:05:47,946 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-03-04 16:05:47,946 INFO  L432   stractBuchiCegarLoop]: Abstraction has 10 states and 12 transitions.
[2025-03-04 16:05:47,946 INFO  L338   stractBuchiCegarLoop]: ======== Iteration 4 ============
[2025-03-04 16:05:47,946 INFO  L72            BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 12 transitions.
[2025-03-04 16:05:47,947 INFO  L131   ngComponentsAnalysis]: Automaton has 1 accepting balls. 8
[2025-03-04 16:05:47,947 INFO  L87            BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2025-03-04 16:05:47,947 INFO  L119           BuchiIsEmpty]: Starting construction of run
[2025-03-04 16:05:47,947 INFO  L148   hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1]
[2025-03-04 16:05:47,947 INFO  L149   hiAutomatonCegarLoop]: Counterexample loop histogram [4, 1, 1, 1, 1]
[2025-03-04 16:05:47,947 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;" 
[2025-03-04 16:05:47,947 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;" 
[2025-03-04 16:05:47,948 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-04 16:05:47,948 INFO  L85        PathProgramCache]: Analyzing trace with hash 1376, now seen corresponding path program 4 times
[2025-03-04 16:05:47,948 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-04 16:05:47,948 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811319227]
[2025-03-04 16:05:47,948 INFO  L95    rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2025-03-04 16:05:47,948 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-04 16:05:47,952 INFO  L108    AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 2 statements into 2 equivalence classes.
[2025-03-04 16:05:47,954 INFO  L111    AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 2 of 2 statements.
[2025-03-04 16:05:47,954 INFO  L114    AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s)
[2025-03-04 16:05:47,954 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-04 16:05:47,955 INFO  L348             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2025-03-04 16:05:47,956 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes.
[2025-03-04 16:05:47,959 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements.
[2025-03-04 16:05:47,959 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-04 16:05:47,959 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-04 16:05:47,960 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2025-03-04 16:05:47,961 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-04 16:05:47,961 INFO  L85        PathProgramCache]: Analyzing trace with hash -1924954145, now seen corresponding path program 2 times
[2025-03-04 16:05:47,961 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-04 16:05:47,961 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38227622]
[2025-03-04 16:05:47,961 INFO  L95    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2025-03-04 16:05:47,961 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-04 16:05:47,966 INFO  L108    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 8 statements into 2 equivalence classes.
[2025-03-04 16:05:47,974 INFO  L111    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 8 of 8 statements.
[2025-03-04 16:05:47,974 INFO  L114    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2025-03-04 16:05:47,974 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-04 16:05:48,023 INFO  L134       CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2025-03-04 16:05:48,023 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-04 16:05:48,023 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38227622]
[2025-03-04 16:05:48,023 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38227622] provided 0 perfect and 1 imperfect interpolant sequences
[2025-03-04 16:05:48,023 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [921188294]
[2025-03-04 16:05:48,023 INFO  L95    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2025-03-04 16:05:48,023 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-03-04 16:05:48,024 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-04 16:05:48,027 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)
[2025-03-04 16:05:48,029 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2025-03-04 16:05:48,054 INFO  L108    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 8 statements into 2 equivalence classes.
[2025-03-04 16:05:48,058 INFO  L111    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 8 of 8 statements.
[2025-03-04 16:05:48,059 INFO  L114    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2025-03-04 16:05:48,059 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-04 16:05:48,060 INFO  L256         TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 6 conjuncts are in the unsatisfiable core
[2025-03-04 16:05:48,061 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-04 16:05:48,125 INFO  L134       CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-04 16:05:48,125 INFO  L312         TraceCheckSpWp]: Computing backward predicates...
[2025-03-04 16:05:48,169 INFO  L134       CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-04 16:05:48,169 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [921188294] provided 0 perfect and 2 imperfect interpolant sequences
[2025-03-04 16:05:48,169 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2025-03-04 16:05:48,169 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 7, 7] total 10
[2025-03-04 16:05:48,169 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505447593]
[2025-03-04 16:05:48,169 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2025-03-04 16:05:48,169 INFO  L769   eck$LassoCheckResult]: loop already infeasible
[2025-03-04 16:05:48,169 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-04 16:05:48,170 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2025-03-04 16:05:48,170 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90
[2025-03-04 16:05:48,170 INFO  L87              Difference]: Start difference. First operand 10 states and 12 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)
[2025-03-04 16:05:48,306 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-04 16:05:48,307 INFO  L93              Difference]: Finished difference Result 27 states and 31 transitions.
[2025-03-04 16:05:48,307 INFO  L82        GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 31 transitions.
[2025-03-04 16:05:48,307 INFO  L131   ngComponentsAnalysis]: Automaton has 1 accepting balls. 25
[2025-03-04 16:05:48,307 INFO  L88        GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 27 states and 31 transitions.
[2025-03-04 16:05:48,307 INFO  L87         BuchiClosureNwa]: Accepting states before buchiClosure: 27
[2025-03-04 16:05:48,308 INFO  L106        BuchiClosureNwa]: Accepting states after buchiClosure: 27
[2025-03-04 16:05:48,308 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 27 states and 31 transitions.
[2025-03-04 16:05:48,308 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2025-03-04 16:05:48,308 INFO  L218   hiAutomatonCegarLoop]: Abstraction has 27 states and 31 transitions.
[2025-03-04 16:05:48,308 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 27 states and 31 transitions.
[2025-03-04 16:05:48,309 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 20.
[2025-03-04 16:05:48,309 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 20 states, 20 states have (on average 1.15) internal successors, (23), 19 states have internal predecessors, (23), 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)
[2025-03-04 16:05:48,309 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions.
[2025-03-04 16:05:48,309 INFO  L240   hiAutomatonCegarLoop]: Abstraction has 20 states and 23 transitions.
[2025-03-04 16:05:48,309 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. 
[2025-03-04 16:05:48,310 INFO  L432   stractBuchiCegarLoop]: Abstraction has 20 states and 23 transitions.
[2025-03-04 16:05:48,310 INFO  L338   stractBuchiCegarLoop]: ======== Iteration 5 ============
[2025-03-04 16:05:48,310 INFO  L72            BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 23 transitions.
[2025-03-04 16:05:48,310 INFO  L131   ngComponentsAnalysis]: Automaton has 1 accepting balls. 18
[2025-03-04 16:05:48,310 INFO  L87            BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2025-03-04 16:05:48,310 INFO  L119           BuchiIsEmpty]: Starting construction of run
[2025-03-04 16:05:48,310 INFO  L148   hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1]
[2025-03-04 16:05:48,310 INFO  L149   hiAutomatonCegarLoop]: Counterexample loop histogram [12, 2, 2, 1, 1]
[2025-03-04 16:05:48,310 INFO  L752   eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~pre4#1, main_#t~pre5#1, main_#t~pre6#1, main_~a~0#1, main_~b~0#1, main_~c~0#1;main_~a~0#1 := 6;main_~b~0#1 := 6;main_~c~0#1 := 6;main_~a~0#1 := 0;" 
[2025-03-04 16:05:48,310 INFO  L754   eck$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;" 
[2025-03-04 16:05:48,311 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-04 16:05:48,311 INFO  L85        PathProgramCache]: Analyzing trace with hash 1376, now seen corresponding path program 5 times
[2025-03-04 16:05:48,311 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-04 16:05:48,311 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589580889]
[2025-03-04 16:05:48,311 INFO  L95    rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
[2025-03-04 16:05:48,311 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-04 16:05:48,315 INFO  L108    AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 2 statements into 1 equivalence classes.
[2025-03-04 16:05:48,317 INFO  L111    AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 2 of 2 statements.
[2025-03-04 16:05:48,317 INFO  L114    AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2025-03-04 16:05:48,317 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-04 16:05:48,317 INFO  L348             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2025-03-04 16:05:48,320 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes.
[2025-03-04 16:05:48,323 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements.
[2025-03-04 16:05:48,324 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-04 16:05:48,324 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-04 16:05:48,324 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2025-03-04 16:05:48,325 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-04 16:05:48,325 INFO  L85        PathProgramCache]: Analyzing trace with hash 1832520385, now seen corresponding path program 3 times
[2025-03-04 16:05:48,325 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-04 16:05:48,325 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438789806]
[2025-03-04 16:05:48,325 INFO  L95    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2025-03-04 16:05:48,325 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-04 16:05:48,331 INFO  L108    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 18 statements into 9 equivalence classes.
[2025-03-04 16:05:48,345 INFO  L111    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) and asserted 18 of 18 statements.
[2025-03-04 16:05:48,345 INFO  L114    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s)
[2025-03-04 16:05:48,345 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-04 16:05:48,409 INFO  L134       CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked.
[2025-03-04 16:05:48,409 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-04 16:05:48,409 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438789806]
[2025-03-04 16:05:48,410 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438789806] provided 0 perfect and 1 imperfect interpolant sequences
[2025-03-04 16:05:48,410 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [606644356]
[2025-03-04 16:05:48,410 INFO  L95    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2025-03-04 16:05:48,410 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-03-04 16:05:48,410 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-04 16:05:48,413 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)
[2025-03-04 16:05:48,415 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2025-03-04 16:05:48,433 INFO  L108    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 18 statements into 9 equivalence classes.
[2025-03-04 16:05:48,441 INFO  L111    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) and asserted 18 of 18 statements.
[2025-03-04 16:05:48,441 INFO  L114    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s)
[2025-03-04 16:05:48,441 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-04 16:05:48,442 INFO  L256         TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 4 conjuncts are in the unsatisfiable core
[2025-03-04 16:05:48,443 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-04 16:05:48,473 INFO  L134       CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked.
[2025-03-04 16:05:48,473 INFO  L312         TraceCheckSpWp]: Computing backward predicates...
[2025-03-04 16:05:48,518 INFO  L134       CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked.
[2025-03-04 16:05:48,518 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [606644356] provided 0 perfect and 2 imperfect interpolant sequences
[2025-03-04 16:05:48,518 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2025-03-04 16:05:48,518 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6
[2025-03-04 16:05:48,518 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294251266]
[2025-03-04 16:05:48,518 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2025-03-04 16:05:48,518 INFO  L769   eck$LassoCheckResult]: loop already infeasible
[2025-03-04 16:05:48,518 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-04 16:05:48,519 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2025-03-04 16:05:48,519 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56
[2025-03-04 16:05:48,519 INFO  L87              Difference]: Start difference. First operand 20 states and 23 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)
[2025-03-04 16:05:48,544 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-04 16:05:48,544 INFO  L93              Difference]: Finished difference Result 52 states and 59 transitions.
[2025-03-04 16:05:48,544 INFO  L82        GeneralOperation]: Start removeNonLiveStates. Operand 52 states and 59 transitions.
[2025-03-04 16:05:48,545 INFO  L131   ngComponentsAnalysis]: Automaton has 1 accepting balls. 50
[2025-03-04 16:05:48,545 INFO  L88        GeneralOperation]: Finished removeNonLiveStates. Reduced from 52 states to 52 states and 59 transitions.
[2025-03-04 16:05:48,545 INFO  L87         BuchiClosureNwa]: Accepting states before buchiClosure: 52
[2025-03-04 16:05:48,545 INFO  L106        BuchiClosureNwa]: Accepting states after buchiClosure: 52
[2025-03-04 16:05:48,545 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 52 states and 59 transitions.
[2025-03-04 16:05:48,546 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2025-03-04 16:05:48,546 INFO  L218   hiAutomatonCegarLoop]: Abstraction has 52 states and 59 transitions.
[2025-03-04 16:05:48,546 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 52 states and 59 transitions.
[2025-03-04 16:05:48,548 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52.
[2025-03-04 16:05:48,548 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 52 states, 52 states have (on average 1.1346153846153846) internal successors, (59), 51 states have internal predecessors, (59), 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)
[2025-03-04 16:05:48,548 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 59 transitions.
[2025-03-04 16:05:48,549 INFO  L240   hiAutomatonCegarLoop]: Abstraction has 52 states and 59 transitions.
[2025-03-04 16:05:48,550 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2025-03-04 16:05:48,550 INFO  L432   stractBuchiCegarLoop]: Abstraction has 52 states and 59 transitions.
[2025-03-04 16:05:48,550 INFO  L338   stractBuchiCegarLoop]: ======== Iteration 6 ============
[2025-03-04 16:05:48,550 INFO  L72            BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 59 transitions.
[2025-03-04 16:05:48,551 INFO  L131   ngComponentsAnalysis]: Automaton has 1 accepting balls. 50
[2025-03-04 16:05:48,551 INFO  L87            BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2025-03-04 16:05:48,551 INFO  L119           BuchiIsEmpty]: Starting construction of run
[2025-03-04 16:05:48,551 INFO  L148   hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1]
[2025-03-04 16:05:48,551 INFO  L149   hiAutomatonCegarLoop]: Counterexample loop histogram [36, 6, 6, 1, 1]
[2025-03-04 16:05:48,551 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;" 
[2025-03-04 16:05:48,551 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;" 
[2025-03-04 16:05:48,552 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-04 16:05:48,552 INFO  L85        PathProgramCache]: Analyzing trace with hash 1376, now seen corresponding path program 6 times
[2025-03-04 16:05:48,552 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-04 16:05:48,552 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740907178]
[2025-03-04 16:05:48,552 INFO  L95    rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
[2025-03-04 16:05:48,552 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-04 16:05:48,556 INFO  L108    AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 2 statements into 1 equivalence classes.
[2025-03-04 16:05:48,558 INFO  L111    AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 2 of 2 statements.
[2025-03-04 16:05:48,558 INFO  L114    AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s)
[2025-03-04 16:05:48,558 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-04 16:05:48,558 INFO  L348             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2025-03-04 16:05:48,558 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes.
[2025-03-04 16:05:48,559 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements.
[2025-03-04 16:05:48,559 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-04 16:05:48,559 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-04 16:05:48,560 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2025-03-04 16:05:48,560 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-04 16:05:48,560 INFO  L85        PathProgramCache]: Analyzing trace with hash -823525815, now seen corresponding path program 4 times
[2025-03-04 16:05:48,560 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-04 16:05:48,561 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284935766]
[2025-03-04 16:05:48,561 INFO  L95    rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2025-03-04 16:05:48,561 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-04 16:05:48,565 INFO  L108    AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 50 statements into 2 equivalence classes.
[2025-03-04 16:05:48,578 INFO  L111    AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 50 of 50 statements.
[2025-03-04 16:05:48,578 INFO  L114    AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s)
[2025-03-04 16:05:48,578 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-04 16:05:48,578 INFO  L348             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2025-03-04 16:05:48,580 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes.
[2025-03-04 16:05:48,597 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements.
[2025-03-04 16:05:48,598 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-04 16:05:48,598 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-04 16:05:48,602 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2025-03-04 16:05:48,602 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-04 16:05:48,602 INFO  L85        PathProgramCache]: Analyzing trace with hash -1759588888, now seen corresponding path program 1 times
[2025-03-04 16:05:48,602 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-04 16:05:48,602 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107028532]
[2025-03-04 16:05:48,602 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-04 16:05:48,602 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-04 16:05:48,609 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes.
[2025-03-04 16:05:48,624 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements.
[2025-03-04 16:05:48,624 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-04 16:05:48,624 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-04 16:05:48,624 INFO  L348             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2025-03-04 16:05:48,626 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes.
[2025-03-04 16:05:48,636 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements.
[2025-03-04 16:05:48,636 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-04 16:05:48,636 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-04 16:05:48,642 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2025-03-04 16:05:49,285 INFO  L204          LassoAnalysis]: Preferences:
[2025-03-04 16:05:49,285 INFO  L125   ssoRankerPreferences]: Compute integeral hull: false
[2025-03-04 16:05:49,286 INFO  L126   ssoRankerPreferences]: Enable LassoPartitioneer: true
[2025-03-04 16:05:49,286 INFO  L127   ssoRankerPreferences]: Term annotations enabled: false
[2025-03-04 16:05:49,286 INFO  L128   ssoRankerPreferences]: Use exernal solver: true
[2025-03-04 16:05:49,286 INFO  L129   ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-04 16:05:49,286 INFO  L130   ssoRankerPreferences]: Dump SMT script to file: false
[2025-03-04 16:05:49,286 INFO  L131   ssoRankerPreferences]: Path of dumped script: 
[2025-03-04 16:05:49,286 INFO  L132   ssoRankerPreferences]: Filename of dumped script: nested_3.c_Iteration6_Loop
[2025-03-04 16:05:49,286 INFO  L133   ssoRankerPreferences]: MapElimAlgo: Frank
[2025-03-04 16:05:49,286 INFO  L241          LassoAnalysis]: Starting lasso preprocessing...
[2025-03-04 16:05:49,297 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-04 16:05:49,301 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-04 16:05:49,304 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-04 16:05:49,307 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-04 16:05:49,310 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-04 16:05:49,312 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-04 16:05:49,356 INFO  L259          LassoAnalysis]: Preprocessing complete.
[2025-03-04 16:05:49,356 INFO  L365          LassoAnalysis]: Checking for nontermination...
[2025-03-04 16:05:49,357 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-04 16:05:49,357 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-04 16:05:49,359 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2025-03-04 16:05:49,361 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process
[2025-03-04 16:05:49,362 INFO  L148   nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2025-03-04 16:05:49,362 INFO  L160   nArgumentSynthesizer]: Using integer mode.
[2025-03-04 16:05:49,378 INFO  L398          LassoAnalysis]: Proved nontermination for one component.
[2025-03-04 16:05:49,379 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: []
[2025-03-04 16:05:49,385 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
[2025-03-04 16:05:49,385 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-04 16:05:49,385 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-04 16:05:49,387 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2025-03-04 16:05:49,388 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process
[2025-03-04 16:05:49,391 INFO  L148   nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2025-03-04 16:05:49,391 INFO  L160   nArgumentSynthesizer]: Using integer mode.
[2025-03-04 16:05:49,403 INFO  L398          LassoAnalysis]: Proved nontermination for one component.
[2025-03-04 16:05:49,403 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: []
[2025-03-04 16:05:49,409 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0
[2025-03-04 16:05:49,410 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-04 16:05:49,410 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-04 16:05:49,412 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2025-03-04 16:05:49,413 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process
[2025-03-04 16:05:49,415 INFO  L148   nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2025-03-04 16:05:49,415 INFO  L160   nArgumentSynthesizer]: Using integer mode.
[2025-03-04 16:05:49,432 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0
[2025-03-04 16:05:49,432 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-04 16:05:49,432 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-04 16:05:49,434 INFO  L229       MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2025-03-04 16:05:49,434 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process
[2025-03-04 16:05:49,437 INFO  L148   nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2025-03-04 16:05:49,437 INFO  L160   nArgumentSynthesizer]: Using integer mode.
[2025-03-04 16:05:49,459 INFO  L405          LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2025-03-04 16:05:49,464 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0
[2025-03-04 16:05:49,464 INFO  L204          LassoAnalysis]: Preferences:
[2025-03-04 16:05:49,464 INFO  L125   ssoRankerPreferences]: Compute integeral hull: false
[2025-03-04 16:05:49,464 INFO  L126   ssoRankerPreferences]: Enable LassoPartitioneer: true
[2025-03-04 16:05:49,464 INFO  L127   ssoRankerPreferences]: Term annotations enabled: false
[2025-03-04 16:05:49,464 INFO  L128   ssoRankerPreferences]: Use exernal solver: false
[2025-03-04 16:05:49,464 INFO  L129   ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-04 16:05:49,464 INFO  L130   ssoRankerPreferences]: Dump SMT script to file: false
[2025-03-04 16:05:49,464 INFO  L131   ssoRankerPreferences]: Path of dumped script: 
[2025-03-04 16:05:49,464 INFO  L132   ssoRankerPreferences]: Filename of dumped script: nested_3.c_Iteration6_Loop
[2025-03-04 16:05:49,464 INFO  L133   ssoRankerPreferences]: MapElimAlgo: Frank
[2025-03-04 16:05:49,464 INFO  L241          LassoAnalysis]: Starting lasso preprocessing...
[2025-03-04 16:05:49,465 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-04 16:05:49,467 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-04 16:05:49,468 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-04 16:05:49,471 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-04 16:05:49,474 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-04 16:05:49,476 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-04 16:05:49,508 INFO  L259          LassoAnalysis]: Preprocessing complete.
[2025-03-04 16:05:49,511 INFO  L451          LassoAnalysis]: Using template 'affine'.
[2025-03-04 16:05:49,512 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-04 16:05:49,512 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-04 16:05:49,513 INFO  L229       MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2025-03-04 16:05:49,515 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process
[2025-03-04 16:05:49,516 INFO  L120   nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2025-03-04 16:05:49,527 INFO  L338   nArgumentSynthesizer]: Template has degree 0.
[2025-03-04 16:05:49,527 INFO  L351   nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2025-03-04 16:05:49,528 INFO  L203   nArgumentSynthesizer]: 1 stem disjuncts
[2025-03-04 16:05:49,530 INFO  L204   nArgumentSynthesizer]: 1 loop disjuncts
[2025-03-04 16:05:49,531 INFO  L205   nArgumentSynthesizer]: 2 template conjuncts.
[2025-03-04 16:05:49,533 INFO  L401   nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2025-03-04 16:05:49,533 INFO  L402   nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2025-03-04 16:05:49,534 INFO  L488          LassoAnalysis]: Proving termination failed for this template and these settings.
[2025-03-04 16:05:49,540 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0
[2025-03-04 16:05:49,540 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-04 16:05:49,541 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-04 16:05:49,542 INFO  L229       MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2025-03-04 16:05:49,544 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process
[2025-03-04 16:05:49,545 INFO  L120   nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2025-03-04 16:05:49,555 INFO  L338   nArgumentSynthesizer]: Template has degree 0.
[2025-03-04 16:05:49,555 INFO  L351   nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2025-03-04 16:05:49,555 INFO  L203   nArgumentSynthesizer]: 1 stem disjuncts
[2025-03-04 16:05:49,555 INFO  L204   nArgumentSynthesizer]: 1 loop disjuncts
[2025-03-04 16:05:49,555 INFO  L205   nArgumentSynthesizer]: 2 template conjuncts.
[2025-03-04 16:05:49,555 INFO  L401   nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2025-03-04 16:05:49,555 INFO  L402   nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2025-03-04 16:05:49,557 INFO  L488          LassoAnalysis]: Proving termination failed for this template and these settings.
[2025-03-04 16:05:49,562 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
[2025-03-04 16:05:49,563 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-04 16:05:49,563 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-04 16:05:49,564 INFO  L229       MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2025-03-04 16:05:49,566 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process
[2025-03-04 16:05:49,567 INFO  L120   nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2025-03-04 16:05:49,576 INFO  L338   nArgumentSynthesizer]: Template has degree 0.
[2025-03-04 16:05:49,577 INFO  L351   nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2025-03-04 16:05:49,577 INFO  L203   nArgumentSynthesizer]: 1 stem disjuncts
[2025-03-04 16:05:49,577 INFO  L204   nArgumentSynthesizer]: 1 loop disjuncts
[2025-03-04 16:05:49,577 INFO  L205   nArgumentSynthesizer]: 2 template conjuncts.
[2025-03-04 16:05:49,577 INFO  L401   nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2025-03-04 16:05:49,577 INFO  L402   nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2025-03-04 16:05:49,579 INFO  L488          LassoAnalysis]: Proving termination failed for this template and these settings.
[2025-03-04 16:05:49,584 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0
[2025-03-04 16:05:49,584 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-04 16:05:49,585 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-04 16:05:49,586 INFO  L229       MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2025-03-04 16:05:49,588 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process
[2025-03-04 16:05:49,589 INFO  L120   nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2025-03-04 16:05:49,599 INFO  L338   nArgumentSynthesizer]: Template has degree 0.
[2025-03-04 16:05:49,599 INFO  L351   nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2025-03-04 16:05:49,599 INFO  L203   nArgumentSynthesizer]: 1 stem disjuncts
[2025-03-04 16:05:49,599 INFO  L204   nArgumentSynthesizer]: 1 loop disjuncts
[2025-03-04 16:05:49,599 INFO  L205   nArgumentSynthesizer]: 2 template conjuncts.
[2025-03-04 16:05:49,600 INFO  L401   nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2025-03-04 16:05:49,600 INFO  L402   nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2025-03-04 16:05:49,602 INFO  L420   nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2025-03-04 16:05:49,604 INFO  L443   ModelExtractionUtils]: Simplification made 3 calls to the SMT solver.
[2025-03-04 16:05:49,605 INFO  L444   ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero.
[2025-03-04 16:05:49,606 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-04 16:05:49,606 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-04 16:05:49,608 INFO  L229       MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2025-03-04 16:05:49,609 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process
[2025-03-04 16:05:49,610 INFO  L435   nArgumentSynthesizer]: Simplifying supporting invariants...
[2025-03-04 16:05:49,610 INFO  L438   nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2025-03-04 16:05:49,611 INFO  L474          LassoAnalysis]: Proved termination.
[2025-03-04 16:05:49,611 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 []
[2025-03-04 16:05:49,616 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0
[2025-03-04 16:05:49,619 INFO  L156   tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2025-03-04 16:05:49,633 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-04 16:05:49,636 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes.
[2025-03-04 16:05:49,638 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements.
[2025-03-04 16:05:49,638 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-04 16:05:49,638 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-04 16:05:49,639 INFO  L256         TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjuncts are in the unsatisfiable core
[2025-03-04 16:05:49,639 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-04 16:05:49,650 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes.
[2025-03-04 16:05:49,665 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements.
[2025-03-04 16:05:49,665 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-04 16:05:49,665 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-04 16:05:49,666 INFO  L256         TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 4 conjuncts are in the unsatisfiable core
[2025-03-04 16:05:49,667 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-04 16:05:49,849 INFO  L134       CoverageAnalysis]: Checked inductivity of 882 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 882 trivial. 0 not checked.
[2025-03-04 16:05:49,851 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 
[2025-03-04 16:05:49,852 INFO  L71    iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 52 states and 59 transitions. cyclomatic complexity: 8 Second operand  has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-04 16:05:49,880 INFO  L75    iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 52 states and 59 transitions. cyclomatic complexity: 8. Second operand  has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 102 states and 117 transitions. Complement of second has 4 states.
[2025-03-04 16:05:49,881 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 
[2025-03-04 16:05:49,881 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-04 16:05:49,882 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions.
[2025-03-04 16:05:49,889 INFO  L84            BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 2 letters. Loop has 50 letters.
[2025-03-04 16:05:49,890 INFO  L116           BuchiAccepts]: Finished buchiAccepts.
[2025-03-04 16:05:49,890 INFO  L84            BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 52 letters. Loop has 50 letters.
[2025-03-04 16:05:49,890 INFO  L116           BuchiAccepts]: Finished buchiAccepts.
[2025-03-04 16:05:49,891 INFO  L84            BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 2 letters. Loop has 100 letters.
[2025-03-04 16:05:49,892 INFO  L116           BuchiAccepts]: Finished buchiAccepts.
[2025-03-04 16:05:49,892 INFO  L82        GeneralOperation]: Start removeNonLiveStates. Operand 102 states and 117 transitions.
[2025-03-04 16:05:49,893 INFO  L131   ngComponentsAnalysis]: Automaton has 6 accepting balls. 13
[2025-03-04 16:05:49,894 INFO  L88        GeneralOperation]: Finished removeNonLiveStates. Reduced from 102 states to 102 states and 117 transitions.
[2025-03-04 16:05:49,894 INFO  L87         BuchiClosureNwa]: Accepting states before buchiClosure: 51
[2025-03-04 16:05:49,894 INFO  L106        BuchiClosureNwa]: Accepting states after buchiClosure: 52
[2025-03-04 16:05:49,894 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 102 states and 117 transitions.
[2025-03-04 16:05:49,894 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2025-03-04 16:05:49,894 INFO  L218   hiAutomatonCegarLoop]: Abstraction has 102 states and 117 transitions.
[2025-03-04 16:05:49,894 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 102 states and 117 transitions.
[2025-03-04 16:05:49,898 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 61.
[2025-03-04 16:05:49,899 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 61 states, 61 states have (on average 1.1639344262295082) internal successors, (71), 60 states have internal predecessors, (71), 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)
[2025-03-04 16:05:49,899 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 71 transitions.
[2025-03-04 16:05:49,899 INFO  L240   hiAutomatonCegarLoop]: Abstraction has 61 states and 71 transitions.
[2025-03-04 16:05:49,899 INFO  L432   stractBuchiCegarLoop]: Abstraction has 61 states and 71 transitions.
[2025-03-04 16:05:49,899 INFO  L338   stractBuchiCegarLoop]: ======== Iteration 7 ============
[2025-03-04 16:05:49,899 INFO  L72            BuchiIsEmpty]: Start buchiIsEmpty. Operand 61 states and 71 transitions.
[2025-03-04 16:05:49,900 INFO  L131   ngComponentsAnalysis]: Automaton has 1 accepting balls. 8
[2025-03-04 16:05:49,900 INFO  L87            BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2025-03-04 16:05:49,900 INFO  L119           BuchiIsEmpty]: Starting construction of run
[2025-03-04 16:05:49,900 INFO  L148   hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1]
[2025-03-04 16:05:49,900 INFO  L149   hiAutomatonCegarLoop]: Counterexample loop histogram [6, 1, 1]
[2025-03-04 16:05:49,900 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;" 
[2025-03-04 16:05:49,900 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;" 
[2025-03-04 16:05:49,900 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-04 16:05:49,900 INFO  L85        PathProgramCache]: Analyzing trace with hash 42666, now seen corresponding path program 1 times
[2025-03-04 16:05:49,900 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-04 16:05:49,901 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561932361]
[2025-03-04 16:05:49,901 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-04 16:05:49,901 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-04 16:05:49,904 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes.
[2025-03-04 16:05:49,907 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements.
[2025-03-04 16:05:49,907 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-04 16:05:49,907 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-04 16:05:49,907 INFO  L348             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2025-03-04 16:05:49,908 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes.
[2025-03-04 16:05:49,909 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements.
[2025-03-04 16:05:49,909 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-04 16:05:49,909 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-04 16:05:49,910 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2025-03-04 16:05:49,910 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-04 16:05:49,910 INFO  L85        PathProgramCache]: Analyzing trace with hash -260300833, now seen corresponding path program 1 times
[2025-03-04 16:05:49,911 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-04 16:05:49,911 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355960291]
[2025-03-04 16:05:49,911 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-04 16:05:49,911 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-04 16:05:49,912 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes.
[2025-03-04 16:05:49,914 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements.
[2025-03-04 16:05:49,914 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-04 16:05:49,914 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-04 16:05:49,914 INFO  L348             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2025-03-04 16:05:49,915 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes.
[2025-03-04 16:05:49,916 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements.
[2025-03-04 16:05:49,917 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-04 16:05:49,917 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-04 16:05:49,917 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2025-03-04 16:05:49,918 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-04 16:05:49,918 INFO  L85        PathProgramCache]: Analyzing trace with hash 832834952, now seen corresponding path program 1 times
[2025-03-04 16:05:49,918 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-04 16:05:49,918 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913879654]
[2025-03-04 16:05:49,918 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-04 16:05:49,918 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-04 16:05:49,920 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes.
[2025-03-04 16:05:49,926 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements.
[2025-03-04 16:05:49,926 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-04 16:05:49,926 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-04 16:05:49,927 INFO  L348             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2025-03-04 16:05:49,930 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes.
[2025-03-04 16:05:49,933 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements.
[2025-03-04 16:05:49,937 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-04 16:05:49,937 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-04 16:05:49,938 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2025-03-04 16:05:49,985 INFO  L204          LassoAnalysis]: Preferences:
[2025-03-04 16:05:49,985 INFO  L125   ssoRankerPreferences]: Compute integeral hull: false
[2025-03-04 16:05:49,985 INFO  L126   ssoRankerPreferences]: Enable LassoPartitioneer: true
[2025-03-04 16:05:49,985 INFO  L127   ssoRankerPreferences]: Term annotations enabled: false
[2025-03-04 16:05:49,985 INFO  L128   ssoRankerPreferences]: Use exernal solver: true
[2025-03-04 16:05:49,985 INFO  L129   ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-04 16:05:49,985 INFO  L130   ssoRankerPreferences]: Dump SMT script to file: false
[2025-03-04 16:05:49,985 INFO  L131   ssoRankerPreferences]: Path of dumped script: 
[2025-03-04 16:05:49,985 INFO  L132   ssoRankerPreferences]: Filename of dumped script: nested_3.c_Iteration7_Loop
[2025-03-04 16:05:49,985 INFO  L133   ssoRankerPreferences]: MapElimAlgo: Frank
[2025-03-04 16:05:49,985 INFO  L241          LassoAnalysis]: Starting lasso preprocessing...
[2025-03-04 16:05:49,986 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-04 16:05:49,991 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-04 16:05:49,993 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-04 16:05:49,995 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-04 16:05:50,031 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0
[2025-03-04 16:05:50,032 INFO  L259          LassoAnalysis]: Preprocessing complete.
[2025-03-04 16:05:50,032 INFO  L365          LassoAnalysis]: Checking for nontermination...
[2025-03-04 16:05:50,033 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-04 16:05:50,033 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-04 16:05:50,035 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)
[2025-03-04 16:05:50,037 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
[2025-03-04 16:05:50,038 INFO  L148   nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2025-03-04 16:05:50,038 INFO  L160   nArgumentSynthesizer]: Using integer mode.
[2025-03-04 16:05:50,054 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
[2025-03-04 16:05:50,054 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-04 16:05:50,055 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-04 16:05:50,056 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)
[2025-03-04 16:05:50,057 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
[2025-03-04 16:05:50,059 INFO  L148   nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2025-03-04 16:05:50,059 INFO  L160   nArgumentSynthesizer]: Using integer mode.
[2025-03-04 16:05:50,082 INFO  L405          LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2025-03-04 16:05:50,086 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
[2025-03-04 16:05:50,086 INFO  L204          LassoAnalysis]: Preferences:
[2025-03-04 16:05:50,086 INFO  L125   ssoRankerPreferences]: Compute integeral hull: false
[2025-03-04 16:05:50,086 INFO  L126   ssoRankerPreferences]: Enable LassoPartitioneer: true
[2025-03-04 16:05:50,086 INFO  L127   ssoRankerPreferences]: Term annotations enabled: false
[2025-03-04 16:05:50,086 INFO  L128   ssoRankerPreferences]: Use exernal solver: false
[2025-03-04 16:05:50,087 INFO  L129   ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-04 16:05:50,087 INFO  L130   ssoRankerPreferences]: Dump SMT script to file: false
[2025-03-04 16:05:50,087 INFO  L131   ssoRankerPreferences]: Path of dumped script: 
[2025-03-04 16:05:50,087 INFO  L132   ssoRankerPreferences]: Filename of dumped script: nested_3.c_Iteration7_Loop
[2025-03-04 16:05:50,087 INFO  L133   ssoRankerPreferences]: MapElimAlgo: Frank
[2025-03-04 16:05:50,087 INFO  L241          LassoAnalysis]: Starting lasso preprocessing...
[2025-03-04 16:05:50,087 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-04 16:05:50,092 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-04 16:05:50,093 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-04 16:05:50,095 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-04 16:05:50,116 INFO  L259          LassoAnalysis]: Preprocessing complete.
[2025-03-04 16:05:50,116 INFO  L451          LassoAnalysis]: Using template 'affine'.
[2025-03-04 16:05:50,117 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-04 16:05:50,117 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-04 16:05:50,118 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)
[2025-03-04 16:05:50,119 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
[2025-03-04 16:05:50,120 INFO  L120   nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2025-03-04 16:05:50,130 INFO  L338   nArgumentSynthesizer]: Template has degree 0.
[2025-03-04 16:05:50,130 INFO  L351   nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2025-03-04 16:05:50,131 INFO  L203   nArgumentSynthesizer]: 1 stem disjuncts
[2025-03-04 16:05:50,131 INFO  L204   nArgumentSynthesizer]: 1 loop disjuncts
[2025-03-04 16:05:50,131 INFO  L205   nArgumentSynthesizer]: 2 template conjuncts.
[2025-03-04 16:05:50,132 INFO  L401   nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2025-03-04 16:05:50,132 INFO  L402   nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2025-03-04 16:05:50,134 INFO  L420   nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2025-03-04 16:05:50,136 INFO  L443   ModelExtractionUtils]: Simplification made 3 calls to the SMT solver.
[2025-03-04 16:05:50,137 INFO  L444   ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero.
[2025-03-04 16:05:50,137 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-04 16:05:50,137 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-04 16:05:50,139 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)
[2025-03-04 16:05:50,141 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
[2025-03-04 16:05:50,142 INFO  L435   nArgumentSynthesizer]: Simplifying supporting invariants...
[2025-03-04 16:05:50,142 INFO  L438   nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2025-03-04 16:05:50,142 INFO  L474          LassoAnalysis]: Proved termination.
[2025-03-04 16:05:50,142 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 []
[2025-03-04 16:05:50,148 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
[2025-03-04 16:05:50,148 INFO  L156   tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2025-03-04 16:05:50,159 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-04 16:05:50,162 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes.
[2025-03-04 16:05:50,165 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements.
[2025-03-04 16:05:50,165 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-04 16:05:50,165 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-04 16:05:50,166 INFO  L256         TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjuncts are in the unsatisfiable core
[2025-03-04 16:05:50,166 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-04 16:05:50,170 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes.
[2025-03-04 16:05:50,173 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements.
[2025-03-04 16:05:50,173 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-04 16:05:50,173 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-04 16:05:50,174 INFO  L256         TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjuncts are in the unsatisfiable core
[2025-03-04 16:05:50,174 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-04 16:05:50,203 INFO  L134       CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked.
[2025-03-04 16:05:50,203 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 
[2025-03-04 16:05:50,203 INFO  L71    iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 61 states and 71 transitions. cyclomatic complexity: 12 Second operand  has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-04 16:05:50,218 INFO  L75    iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 61 states and 71 transitions. cyclomatic complexity: 12. Second operand  has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 170 states and 198 transitions. Complement of second has 7 states.
[2025-03-04 16:05:50,218 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 
[2025-03-04 16:05:50,219 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-04 16:05:50,219 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions.
[2025-03-04 16:05:50,219 INFO  L84            BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 3 letters. Loop has 8 letters.
[2025-03-04 16:05:50,219 INFO  L116           BuchiAccepts]: Finished buchiAccepts.
[2025-03-04 16:05:50,219 INFO  L84            BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 11 letters. Loop has 8 letters.
[2025-03-04 16:05:50,219 INFO  L116           BuchiAccepts]: Finished buchiAccepts.
[2025-03-04 16:05:50,219 INFO  L84            BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 3 letters. Loop has 16 letters.
[2025-03-04 16:05:50,219 INFO  L116           BuchiAccepts]: Finished buchiAccepts.
[2025-03-04 16:05:50,220 INFO  L82        GeneralOperation]: Start removeNonLiveStates. Operand 170 states and 198 transitions.
[2025-03-04 16:05:50,222 INFO  L131   ngComponentsAnalysis]: Automaton has 2 accepting balls. 9
[2025-03-04 16:05:50,224 INFO  L88        GeneralOperation]: Finished removeNonLiveStates. Reduced from 170 states to 127 states and 148 transitions.
[2025-03-04 16:05:50,225 INFO  L87         BuchiClosureNwa]: Accepting states before buchiClosure: 18
[2025-03-04 16:05:50,225 INFO  L106        BuchiClosureNwa]: Accepting states after buchiClosure: 19
[2025-03-04 16:05:50,225 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 127 states and 148 transitions.
[2025-03-04 16:05:50,225 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2025-03-04 16:05:50,225 INFO  L218   hiAutomatonCegarLoop]: Abstraction has 127 states and 148 transitions.
[2025-03-04 16:05:50,225 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 127 states and 148 transitions.
[2025-03-04 16:05:50,227 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 71.
[2025-03-04 16:05:50,227 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 71 states, 71 states have (on average 1.1830985915492958) internal successors, (84), 70 states have internal predecessors, (84), 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)
[2025-03-04 16:05:50,229 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 84 transitions.
[2025-03-04 16:05:50,229 INFO  L240   hiAutomatonCegarLoop]: Abstraction has 71 states and 84 transitions.
[2025-03-04 16:05:50,229 INFO  L432   stractBuchiCegarLoop]: Abstraction has 71 states and 84 transitions.
[2025-03-04 16:05:50,229 INFO  L338   stractBuchiCegarLoop]: ======== Iteration 8 ============
[2025-03-04 16:05:50,229 INFO  L72            BuchiIsEmpty]: Start buchiIsEmpty. Operand 71 states and 84 transitions.
[2025-03-04 16:05:50,229 INFO  L131   ngComponentsAnalysis]: Automaton has 2 accepting balls. 9
[2025-03-04 16:05:50,230 INFO  L87            BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2025-03-04 16:05:50,230 INFO  L119           BuchiIsEmpty]: Starting construction of run
[2025-03-04 16:05:50,230 INFO  L148   hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1]
[2025-03-04 16:05:50,230 INFO  L149   hiAutomatonCegarLoop]: Counterexample loop histogram [1]
[2025-03-04 16:05:50,230 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;" 
[2025-03-04 16:05:50,230 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;" 
[2025-03-04 16:05:50,230 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-04 16:05:50,230 INFO  L85        PathProgramCache]: Analyzing trace with hash 1322655, now seen corresponding path program 1 times
[2025-03-04 16:05:50,230 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-04 16:05:50,230 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619785165]
[2025-03-04 16:05:50,230 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-04 16:05:50,230 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-04 16:05:50,234 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes.
[2025-03-04 16:05:50,236 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements.
[2025-03-04 16:05:50,236 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-04 16:05:50,236 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-04 16:05:50,236 INFO  L348             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2025-03-04 16:05:50,237 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes.
[2025-03-04 16:05:50,238 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements.
[2025-03-04 16:05:50,238 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-04 16:05:50,238 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-04 16:05:50,239 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2025-03-04 16:05:50,239 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-04 16:05:50,239 INFO  L85        PathProgramCache]: Analyzing trace with hash 39, now seen corresponding path program 1 times
[2025-03-04 16:05:50,239 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-04 16:05:50,239 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283242148]
[2025-03-04 16:05:50,239 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-04 16:05:50,239 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-04 16:05:50,240 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes.
[2025-03-04 16:05:50,241 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements.
[2025-03-04 16:05:50,241 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-04 16:05:50,241 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-04 16:05:50,241 INFO  L348             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2025-03-04 16:05:50,241 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes.
[2025-03-04 16:05:50,241 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements.
[2025-03-04 16:05:50,241 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-04 16:05:50,241 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-04 16:05:50,242 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2025-03-04 16:05:50,242 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-04 16:05:50,242 INFO  L85        PathProgramCache]: Analyzing trace with hash 41002313, now seen corresponding path program 1 times
[2025-03-04 16:05:50,242 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-04 16:05:50,242 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323602003]
[2025-03-04 16:05:50,242 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-04 16:05:50,242 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-04 16:05:50,243 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes.
[2025-03-04 16:05:50,245 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements.
[2025-03-04 16:05:50,245 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-04 16:05:50,245 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-04 16:05:50,245 INFO  L348             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2025-03-04 16:05:50,245 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes.
[2025-03-04 16:05:50,246 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements.
[2025-03-04 16:05:50,246 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-04 16:05:50,246 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-04 16:05:50,247 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2025-03-04 16:05:50,257 INFO  L204          LassoAnalysis]: Preferences:
[2025-03-04 16:05:50,257 INFO  L125   ssoRankerPreferences]: Compute integeral hull: false
[2025-03-04 16:05:50,257 INFO  L126   ssoRankerPreferences]: Enable LassoPartitioneer: true
[2025-03-04 16:05:50,257 INFO  L127   ssoRankerPreferences]: Term annotations enabled: false
[2025-03-04 16:05:50,257 INFO  L128   ssoRankerPreferences]: Use exernal solver: true
[2025-03-04 16:05:50,257 INFO  L129   ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-04 16:05:50,257 INFO  L130   ssoRankerPreferences]: Dump SMT script to file: false
[2025-03-04 16:05:50,257 INFO  L131   ssoRankerPreferences]: Path of dumped script: 
[2025-03-04 16:05:50,257 INFO  L132   ssoRankerPreferences]: Filename of dumped script: nested_3.c_Iteration8_Loop
[2025-03-04 16:05:50,257 INFO  L133   ssoRankerPreferences]: MapElimAlgo: Frank
[2025-03-04 16:05:50,257 INFO  L241          LassoAnalysis]: Starting lasso preprocessing...
[2025-03-04 16:05:50,258 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-04 16:05:50,262 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-04 16:05:50,281 INFO  L259          LassoAnalysis]: Preprocessing complete.
[2025-03-04 16:05:50,281 INFO  L365          LassoAnalysis]: Checking for nontermination...
[2025-03-04 16:05:50,281 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-04 16:05:50,281 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-04 16:05:50,284 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)
[2025-03-04 16:05:50,289 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
[2025-03-04 16:05:50,290 INFO  L148   nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2025-03-04 16:05:50,290 INFO  L160   nArgumentSynthesizer]: Using integer mode.
[2025-03-04 16:05:50,302 INFO  L398          LassoAnalysis]: Proved nontermination for one component.
[2025-03-04 16:05:50,302 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: []
[2025-03-04 16:05:50,311 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0
[2025-03-04 16:05:50,311 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-04 16:05:50,311 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-04 16:05:50,316 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)
[2025-03-04 16:05:50,318 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
[2025-03-04 16:05:50,319 INFO  L148   nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2025-03-04 16:05:50,319 INFO  L160   nArgumentSynthesizer]: Using integer mode.
[2025-03-04 16:05:50,336 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
[2025-03-04 16:05:50,337 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-04 16:05:50,337 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-04 16:05:50,339 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)
[2025-03-04 16:05:50,340 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
[2025-03-04 16:05:50,342 INFO  L148   nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2025-03-04 16:05:50,342 INFO  L160   nArgumentSynthesizer]: Using integer mode.
[2025-03-04 16:05:50,364 INFO  L405          LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2025-03-04 16:05:50,368 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
[2025-03-04 16:05:50,368 INFO  L204          LassoAnalysis]: Preferences:
[2025-03-04 16:05:50,368 INFO  L125   ssoRankerPreferences]: Compute integeral hull: false
[2025-03-04 16:05:50,368 INFO  L126   ssoRankerPreferences]: Enable LassoPartitioneer: true
[2025-03-04 16:05:50,368 INFO  L127   ssoRankerPreferences]: Term annotations enabled: false
[2025-03-04 16:05:50,368 INFO  L128   ssoRankerPreferences]: Use exernal solver: false
[2025-03-04 16:05:50,368 INFO  L129   ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-04 16:05:50,368 INFO  L130   ssoRankerPreferences]: Dump SMT script to file: false
[2025-03-04 16:05:50,368 INFO  L131   ssoRankerPreferences]: Path of dumped script: 
[2025-03-04 16:05:50,368 INFO  L132   ssoRankerPreferences]: Filename of dumped script: nested_3.c_Iteration8_Loop
[2025-03-04 16:05:50,368 INFO  L133   ssoRankerPreferences]: MapElimAlgo: Frank
[2025-03-04 16:05:50,368 INFO  L241          LassoAnalysis]: Starting lasso preprocessing...
[2025-03-04 16:05:50,369 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-04 16:05:50,371 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-04 16:05:50,387 INFO  L259          LassoAnalysis]: Preprocessing complete.
[2025-03-04 16:05:50,387 INFO  L451          LassoAnalysis]: Using template 'affine'.
[2025-03-04 16:05:50,387 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-04 16:05:50,387 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-04 16:05:50,390 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)
[2025-03-04 16:05:50,391 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
[2025-03-04 16:05:50,393 INFO  L120   nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2025-03-04 16:05:50,402 INFO  L338   nArgumentSynthesizer]: Template has degree 0.
[2025-03-04 16:05:50,402 INFO  L351   nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2025-03-04 16:05:50,402 INFO  L203   nArgumentSynthesizer]: 1 stem disjuncts
[2025-03-04 16:05:50,403 INFO  L204   nArgumentSynthesizer]: 1 loop disjuncts
[2025-03-04 16:05:50,403 INFO  L205   nArgumentSynthesizer]: 2 template conjuncts.
[2025-03-04 16:05:50,403 INFO  L401   nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2025-03-04 16:05:50,403 INFO  L402   nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2025-03-04 16:05:50,405 INFO  L488          LassoAnalysis]: Proving termination failed for this template and these settings.
[2025-03-04 16:05:50,411 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0
[2025-03-04 16:05:50,411 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-04 16:05:50,411 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-04 16:05:50,417 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)
[2025-03-04 16:05:50,421 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
[2025-03-04 16:05:50,421 INFO  L120   nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2025-03-04 16:05:50,432 INFO  L338   nArgumentSynthesizer]: Template has degree 0.
[2025-03-04 16:05:50,432 INFO  L351   nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2025-03-04 16:05:50,432 INFO  L203   nArgumentSynthesizer]: 1 stem disjuncts
[2025-03-04 16:05:50,432 INFO  L204   nArgumentSynthesizer]: 1 loop disjuncts
[2025-03-04 16:05:50,432 INFO  L205   nArgumentSynthesizer]: 2 template conjuncts.
[2025-03-04 16:05:50,433 INFO  L401   nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2025-03-04 16:05:50,433 INFO  L402   nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2025-03-04 16:05:50,436 INFO  L420   nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2025-03-04 16:05:50,439 INFO  L443   ModelExtractionUtils]: Simplification made 3 calls to the SMT solver.
[2025-03-04 16:05:50,439 INFO  L444   ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero.
[2025-03-04 16:05:50,439 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-04 16:05:50,439 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-04 16:05:50,441 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)
[2025-03-04 16:05:50,445 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
[2025-03-04 16:05:50,445 INFO  L435   nArgumentSynthesizer]: Simplifying supporting invariants...
[2025-03-04 16:05:50,446 INFO  L438   nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2025-03-04 16:05:50,446 INFO  L474          LassoAnalysis]: Proved termination.
[2025-03-04 16:05:50,446 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 []
[2025-03-04 16:05:50,452 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
[2025-03-04 16:05:50,453 INFO  L156   tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2025-03-04 16:05:50,462 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-04 16:05:50,465 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes.
[2025-03-04 16:05:50,469 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements.
[2025-03-04 16:05:50,469 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-04 16:05:50,469 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-04 16:05:50,470 INFO  L256         TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 2 conjuncts are in the unsatisfiable core
[2025-03-04 16:05:50,470 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-04 16:05:50,474 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes.
[2025-03-04 16:05:50,475 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements.
[2025-03-04 16:05:50,475 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-04 16:05:50,475 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-04 16:05:50,476 WARN  L254         TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core
[2025-03-04 16:05:50,476 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-04 16:05:50,476 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-04 16:05:50,477 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 
[2025-03-04 16:05:50,477 INFO  L71    iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 71 states and 84 transitions. cyclomatic complexity: 17 Second operand  has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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)
[2025-03-04 16:05:50,486 INFO  L75    iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 71 states and 84 transitions. cyclomatic complexity: 17. Second operand  has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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 92 states and 108 transitions. Complement of second has 5 states.
[2025-03-04 16:05:50,488 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 
[2025-03-04 16:05:50,489 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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)
[2025-03-04 16:05:50,490 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions.
[2025-03-04 16:05:50,490 INFO  L84            BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 4 letters. Loop has 1 letters.
[2025-03-04 16:05:50,490 INFO  L116           BuchiAccepts]: Finished buchiAccepts.
[2025-03-04 16:05:50,490 INFO  L84            BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 1 letters.
[2025-03-04 16:05:50,490 INFO  L116           BuchiAccepts]: Finished buchiAccepts.
[2025-03-04 16:05:50,490 INFO  L84            BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 4 letters. Loop has 2 letters.
[2025-03-04 16:05:50,490 INFO  L116           BuchiAccepts]: Finished buchiAccepts.
[2025-03-04 16:05:50,490 INFO  L82        GeneralOperation]: Start removeNonLiveStates. Operand 92 states and 108 transitions.
[2025-03-04 16:05:50,491 INFO  L131   ngComponentsAnalysis]: Automaton has 2 accepting balls. 9
[2025-03-04 16:05:50,491 INFO  L88        GeneralOperation]: Finished removeNonLiveStates. Reduced from 92 states to 88 states and 103 transitions.
[2025-03-04 16:05:50,491 INFO  L87         BuchiClosureNwa]: Accepting states before buchiClosure: 13
[2025-03-04 16:05:50,491 INFO  L106        BuchiClosureNwa]: Accepting states after buchiClosure: 13
[2025-03-04 16:05:50,491 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 88 states and 103 transitions.
[2025-03-04 16:05:50,491 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2025-03-04 16:05:50,491 INFO  L218   hiAutomatonCegarLoop]: Abstraction has 88 states and 103 transitions.
[2025-03-04 16:05:50,491 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 88 states and 103 transitions.
[2025-03-04 16:05:50,493 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 71.
[2025-03-04 16:05:50,494 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 71 states, 71 states have (on average 1.1690140845070423) internal successors, (83), 70 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)
[2025-03-04 16:05:50,494 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 83 transitions.
[2025-03-04 16:05:50,494 INFO  L240   hiAutomatonCegarLoop]: Abstraction has 71 states and 83 transitions.
[2025-03-04 16:05:50,494 INFO  L432   stractBuchiCegarLoop]: Abstraction has 71 states and 83 transitions.
[2025-03-04 16:05:50,494 INFO  L338   stractBuchiCegarLoop]: ======== Iteration 9 ============
[2025-03-04 16:05:50,494 INFO  L72            BuchiIsEmpty]: Start buchiIsEmpty. Operand 71 states and 83 transitions.
[2025-03-04 16:05:50,495 INFO  L131   ngComponentsAnalysis]: Automaton has 2 accepting balls. 9
[2025-03-04 16:05:50,495 INFO  L87            BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2025-03-04 16:05:50,495 INFO  L119           BuchiIsEmpty]: Starting construction of run
[2025-03-04 16:05:50,495 INFO  L148   hiAutomatonCegarLoop]: Counterexample stem histogram [6, 2, 1, 1, 1, 1]
[2025-03-04 16:05:50,495 INFO  L149   hiAutomatonCegarLoop]: Counterexample loop histogram [1]
[2025-03-04 16:05:50,496 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;" 
[2025-03-04 16:05:50,496 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;" 
[2025-03-04 16:05:50,496 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-04 16:05:50,496 INFO  L85        PathProgramCache]: Analyzing trace with hash 48079745, now seen corresponding path program 2 times
[2025-03-04 16:05:50,496 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-04 16:05:50,496 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389306911]
[2025-03-04 16:05:50,496 INFO  L95    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2025-03-04 16:05:50,497 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-04 16:05:50,499 INFO  L108    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 12 statements into 2 equivalence classes.
[2025-03-04 16:05:50,502 INFO  L111    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 12 of 12 statements.
[2025-03-04 16:05:50,502 INFO  L114    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2025-03-04 16:05:50,502 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-04 16:05:50,502 INFO  L348             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2025-03-04 16:05:50,503 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes.
[2025-03-04 16:05:50,509 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements.
[2025-03-04 16:05:50,509 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-04 16:05:50,509 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-04 16:05:50,511 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2025-03-04 16:05:50,511 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-04 16:05:50,511 INFO  L85        PathProgramCache]: Analyzing trace with hash 39, now seen corresponding path program 2 times
[2025-03-04 16:05:50,511 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-04 16:05:50,511 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482556662]
[2025-03-04 16:05:50,511 INFO  L95    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2025-03-04 16:05:50,511 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-04 16:05:50,513 INFO  L108    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 1 statements into 1 equivalence classes.
[2025-03-04 16:05:50,513 INFO  L111    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 1 of 1 statements.
[2025-03-04 16:05:50,513 INFO  L114    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2025-03-04 16:05:50,513 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-04 16:05:50,513 INFO  L348             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2025-03-04 16:05:50,514 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes.
[2025-03-04 16:05:50,514 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements.
[2025-03-04 16:05:50,514 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-04 16:05:50,514 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-04 16:05:50,515 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2025-03-04 16:05:50,515 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-04 16:05:50,515 INFO  L85        PathProgramCache]: Analyzing trace with hash 1490472103, now seen corresponding path program 3 times
[2025-03-04 16:05:50,515 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-04 16:05:50,515 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928263135]
[2025-03-04 16:05:50,515 INFO  L95    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2025-03-04 16:05:50,515 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-04 16:05:50,517 INFO  L108    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 13 statements into 5 equivalence classes.
[2025-03-04 16:05:50,522 INFO  L111    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) and asserted 13 of 13 statements.
[2025-03-04 16:05:50,522 INFO  L114    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s)
[2025-03-04 16:05:50,522 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-04 16:05:50,522 INFO  L348             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2025-03-04 16:05:50,523 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes.
[2025-03-04 16:05:50,525 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements.
[2025-03-04 16:05:50,526 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-04 16:05:50,526 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-04 16:05:50,527 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2025-03-04 16:05:50,536 INFO  L204          LassoAnalysis]: Preferences:
[2025-03-04 16:05:50,537 INFO  L125   ssoRankerPreferences]: Compute integeral hull: false
[2025-03-04 16:05:50,537 INFO  L126   ssoRankerPreferences]: Enable LassoPartitioneer: true
[2025-03-04 16:05:50,537 INFO  L127   ssoRankerPreferences]: Term annotations enabled: false
[2025-03-04 16:05:50,537 INFO  L128   ssoRankerPreferences]: Use exernal solver: true
[2025-03-04 16:05:50,537 INFO  L129   ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-04 16:05:50,537 INFO  L130   ssoRankerPreferences]: Dump SMT script to file: false
[2025-03-04 16:05:50,537 INFO  L131   ssoRankerPreferences]: Path of dumped script: 
[2025-03-04 16:05:50,537 INFO  L132   ssoRankerPreferences]: Filename of dumped script: nested_3.c_Iteration9_Loop
[2025-03-04 16:05:50,537 INFO  L133   ssoRankerPreferences]: MapElimAlgo: Frank
[2025-03-04 16:05:50,537 INFO  L241          LassoAnalysis]: Starting lasso preprocessing...
[2025-03-04 16:05:50,537 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-04 16:05:50,539 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-04 16:05:50,554 INFO  L259          LassoAnalysis]: Preprocessing complete.
[2025-03-04 16:05:50,554 INFO  L365          LassoAnalysis]: Checking for nontermination...
[2025-03-04 16:05:50,554 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-04 16:05:50,554 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-04 16:05:50,556 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)
[2025-03-04 16:05:50,560 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
[2025-03-04 16:05:50,561 INFO  L148   nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2025-03-04 16:05:50,561 INFO  L160   nArgumentSynthesizer]: Using integer mode.
[2025-03-04 16:05:50,572 INFO  L398          LassoAnalysis]: Proved nontermination for one component.
[2025-03-04 16:05:50,572 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: []
[2025-03-04 16:05:50,579 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0
[2025-03-04 16:05:50,579 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-04 16:05:50,579 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-04 16:05:50,582 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)
[2025-03-04 16:05:50,584 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
[2025-03-04 16:05:50,585 INFO  L148   nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2025-03-04 16:05:50,585 INFO  L160   nArgumentSynthesizer]: Using integer mode.
[2025-03-04 16:05:50,604 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
[2025-03-04 16:05:50,604 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-04 16:05:50,604 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-04 16:05:50,606 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)
[2025-03-04 16:05:50,608 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
[2025-03-04 16:05:50,609 INFO  L148   nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2025-03-04 16:05:50,609 INFO  L160   nArgumentSynthesizer]: Using integer mode.
[2025-03-04 16:05:50,631 INFO  L405          LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2025-03-04 16:05:50,636 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0
[2025-03-04 16:05:50,636 INFO  L204          LassoAnalysis]: Preferences:
[2025-03-04 16:05:50,636 INFO  L125   ssoRankerPreferences]: Compute integeral hull: false
[2025-03-04 16:05:50,636 INFO  L126   ssoRankerPreferences]: Enable LassoPartitioneer: true
[2025-03-04 16:05:50,636 INFO  L127   ssoRankerPreferences]: Term annotations enabled: false
[2025-03-04 16:05:50,636 INFO  L128   ssoRankerPreferences]: Use exernal solver: false
[2025-03-04 16:05:50,636 INFO  L129   ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-04 16:05:50,636 INFO  L130   ssoRankerPreferences]: Dump SMT script to file: false
[2025-03-04 16:05:50,636 INFO  L131   ssoRankerPreferences]: Path of dumped script: 
[2025-03-04 16:05:50,636 INFO  L132   ssoRankerPreferences]: Filename of dumped script: nested_3.c_Iteration9_Loop
[2025-03-04 16:05:50,636 INFO  L133   ssoRankerPreferences]: MapElimAlgo: Frank
[2025-03-04 16:05:50,636 INFO  L241          LassoAnalysis]: Starting lasso preprocessing...
[2025-03-04 16:05:50,637 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-04 16:05:50,639 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-04 16:05:50,654 INFO  L259          LassoAnalysis]: Preprocessing complete.
[2025-03-04 16:05:50,654 INFO  L451          LassoAnalysis]: Using template 'affine'.
[2025-03-04 16:05:50,654 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-04 16:05:50,654 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-04 16:05:50,656 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)
[2025-03-04 16:05:50,658 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
[2025-03-04 16:05:50,659 INFO  L120   nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2025-03-04 16:05:50,668 INFO  L338   nArgumentSynthesizer]: Template has degree 0.
[2025-03-04 16:05:50,669 INFO  L351   nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2025-03-04 16:05:50,669 INFO  L203   nArgumentSynthesizer]: 1 stem disjuncts
[2025-03-04 16:05:50,669 INFO  L204   nArgumentSynthesizer]: 1 loop disjuncts
[2025-03-04 16:05:50,669 INFO  L205   nArgumentSynthesizer]: 2 template conjuncts.
[2025-03-04 16:05:50,669 INFO  L401   nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2025-03-04 16:05:50,669 INFO  L402   nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2025-03-04 16:05:50,673 INFO  L488          LassoAnalysis]: Proving termination failed for this template and these settings.
[2025-03-04 16:05:50,679 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0
[2025-03-04 16:05:50,679 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-04 16:05:50,679 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-04 16:05:50,681 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)
[2025-03-04 16:05:50,687 INFO  L120   nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2025-03-04 16:05:50,691 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
[2025-03-04 16:05:50,700 INFO  L338   nArgumentSynthesizer]: Template has degree 0.
[2025-03-04 16:05:50,700 INFO  L351   nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2025-03-04 16:05:50,700 INFO  L203   nArgumentSynthesizer]: 1 stem disjuncts
[2025-03-04 16:05:50,701 INFO  L204   nArgumentSynthesizer]: 1 loop disjuncts
[2025-03-04 16:05:50,702 INFO  L205   nArgumentSynthesizer]: 2 template conjuncts.
[2025-03-04 16:05:50,702 INFO  L401   nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2025-03-04 16:05:50,703 INFO  L402   nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2025-03-04 16:05:50,705 INFO  L420   nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2025-03-04 16:05:50,707 INFO  L443   ModelExtractionUtils]: Simplification made 3 calls to the SMT solver.
[2025-03-04 16:05:50,708 INFO  L444   ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero.
[2025-03-04 16:05:50,708 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-04 16:05:50,708 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-04 16:05:50,713 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)
[2025-03-04 16:05:50,717 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
[2025-03-04 16:05:50,718 INFO  L435   nArgumentSynthesizer]: Simplifying supporting invariants...
[2025-03-04 16:05:50,718 INFO  L438   nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2025-03-04 16:05:50,718 INFO  L474          LassoAnalysis]: Proved termination.
[2025-03-04 16:05:50,718 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 []
[2025-03-04 16:05:50,729 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
[2025-03-04 16:05:50,730 INFO  L156   tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2025-03-04 16:05:50,741 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-04 16:05:50,745 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes.
[2025-03-04 16:05:50,751 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements.
[2025-03-04 16:05:50,752 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-04 16:05:50,752 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-04 16:05:50,752 INFO  L256         TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 2 conjuncts are in the unsatisfiable core
[2025-03-04 16:05:50,753 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-04 16:05:50,767 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes.
[2025-03-04 16:05:50,768 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements.
[2025-03-04 16:05:50,768 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-04 16:05:50,768 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-04 16:05:50,769 WARN  L254         TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core
[2025-03-04 16:05:50,769 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-04 16:05:50,769 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-04 16:05:50,769 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 
[2025-03-04 16:05:50,769 INFO  L71    iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 71 states and 83 transitions. cyclomatic complexity: 16 Second operand  has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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)
[2025-03-04 16:05:50,778 INFO  L75    iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 71 states and 83 transitions. cyclomatic complexity: 16. Second operand  has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) Result 90 states and 105 transitions. Complement of second has 5 states.
[2025-03-04 16:05:50,779 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 
[2025-03-04 16:05:50,780 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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)
[2025-03-04 16:05:50,780 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions.
[2025-03-04 16:05:50,780 INFO  L84            BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 12 letters. Loop has 1 letters.
[2025-03-04 16:05:50,780 INFO  L116           BuchiAccepts]: Finished buchiAccepts.
[2025-03-04 16:05:50,780 INFO  L689   stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted
[2025-03-04 16:05:50,790 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-04 16:05:50,795 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes.
[2025-03-04 16:05:50,801 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements.
[2025-03-04 16:05:50,801 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-04 16:05:50,802 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-04 16:05:50,802 INFO  L256         TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 2 conjuncts are in the unsatisfiable core
[2025-03-04 16:05:50,803 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-04 16:05:50,817 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes.
[2025-03-04 16:05:50,818 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements.
[2025-03-04 16:05:50,818 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-04 16:05:50,818 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-04 16:05:50,818 WARN  L254         TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core
[2025-03-04 16:05:50,818 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-04 16:05:50,819 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-04 16:05:50,819 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 
[2025-03-04 16:05:50,819 INFO  L71    iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 71 states and 83 transitions. cyclomatic complexity: 16 Second operand  has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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)
[2025-03-04 16:05:50,826 INFO  L75    iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 71 states and 83 transitions. cyclomatic complexity: 16. Second operand  has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) Result 90 states and 105 transitions. Complement of second has 5 states.
[2025-03-04 16:05:50,826 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 
[2025-03-04 16:05:50,827 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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)
[2025-03-04 16:05:50,827 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions.
[2025-03-04 16:05:50,827 INFO  L84            BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 12 letters. Loop has 1 letters.
[2025-03-04 16:05:50,827 INFO  L116           BuchiAccepts]: Finished buchiAccepts.
[2025-03-04 16:05:50,827 INFO  L689   stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted
[2025-03-04 16:05:50,839 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-04 16:05:50,844 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes.
[2025-03-04 16:05:50,850 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements.
[2025-03-04 16:05:50,850 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-04 16:05:50,850 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-04 16:05:50,852 INFO  L256         TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 2 conjuncts are in the unsatisfiable core
[2025-03-04 16:05:50,853 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-04 16:05:50,866 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes.
[2025-03-04 16:05:50,867 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements.
[2025-03-04 16:05:50,867 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-04 16:05:50,867 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-04 16:05:50,868 WARN  L254         TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core
[2025-03-04 16:05:50,868 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-04 16:05:50,868 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-04 16:05:50,869 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 
[2025-03-04 16:05:50,869 INFO  L71    iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 71 states and 83 transitions. cyclomatic complexity: 16 Second operand  has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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)
[2025-03-04 16:05:50,879 INFO  L75    iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 71 states and 83 transitions. cyclomatic complexity: 16. Second operand  has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) Result 85 states and 97 transitions. Complement of second has 4 states.
[2025-03-04 16:05:50,880 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 
[2025-03-04 16:05:50,880 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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)
[2025-03-04 16:05:50,880 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions.
[2025-03-04 16:05:50,880 INFO  L84            BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 12 letters. Loop has 1 letters.
[2025-03-04 16:05:50,880 INFO  L116           BuchiAccepts]: Finished buchiAccepts.
[2025-03-04 16:05:50,880 INFO  L84            BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 13 letters. Loop has 1 letters.
[2025-03-04 16:05:50,880 INFO  L116           BuchiAccepts]: Finished buchiAccepts.
[2025-03-04 16:05:50,880 INFO  L84            BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 12 letters. Loop has 2 letters.
[2025-03-04 16:05:50,880 INFO  L116           BuchiAccepts]: Finished buchiAccepts.
[2025-03-04 16:05:50,880 INFO  L82        GeneralOperation]: Start removeNonLiveStates. Operand 85 states and 97 transitions.
[2025-03-04 16:05:50,881 INFO  L131   ngComponentsAnalysis]: Automaton has 1 accepting balls. 8
[2025-03-04 16:05:50,881 INFO  L88        GeneralOperation]: Finished removeNonLiveStates. Reduced from 85 states to 63 states and 72 transitions.
[2025-03-04 16:05:50,881 INFO  L87         BuchiClosureNwa]: Accepting states before buchiClosure: 5
[2025-03-04 16:05:50,881 INFO  L106        BuchiClosureNwa]: Accepting states after buchiClosure: 6
[2025-03-04 16:05:50,881 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 63 states and 72 transitions.
[2025-03-04 16:05:50,881 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2025-03-04 16:05:50,881 INFO  L218   hiAutomatonCegarLoop]: Abstraction has 63 states and 72 transitions.
[2025-03-04 16:05:50,882 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 63 states and 72 transitions.
[2025-03-04 16:05:50,883 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 61.
[2025-03-04 16:05:50,883 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 61 states, 61 states have (on average 1.1475409836065573) internal successors, (70), 60 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)
[2025-03-04 16:05:50,883 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 70 transitions.
[2025-03-04 16:05:50,883 INFO  L240   hiAutomatonCegarLoop]: Abstraction has 61 states and 70 transitions.
[2025-03-04 16:05:50,883 INFO  L432   stractBuchiCegarLoop]: Abstraction has 61 states and 70 transitions.
[2025-03-04 16:05:50,883 INFO  L338   stractBuchiCegarLoop]: ======== Iteration 10 ============
[2025-03-04 16:05:50,886 INFO  L72            BuchiIsEmpty]: Start buchiIsEmpty. Operand 61 states and 70 transitions.
[2025-03-04 16:05:50,887 INFO  L131   ngComponentsAnalysis]: Automaton has 1 accepting balls. 8
[2025-03-04 16:05:50,887 INFO  L87            BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2025-03-04 16:05:50,887 INFO  L119           BuchiIsEmpty]: Starting construction of run
[2025-03-04 16:05:50,888 INFO  L148   hiAutomatonCegarLoop]: Counterexample stem histogram [36, 6, 6, 2, 1, 1, 1]
[2025-03-04 16:05:50,889 INFO  L149   hiAutomatonCegarLoop]: Counterexample loop histogram [6, 1, 1]
[2025-03-04 16:05:50,889 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;" 
[2025-03-04 16:05:50,889 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;" 
[2025-03-04 16:05:50,890 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-04 16:05:50,890 INFO  L85        PathProgramCache]: Analyzing trace with hash 1287319330, now seen corresponding path program 2 times
[2025-03-04 16:05:50,890 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-04 16:05:50,890 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5772149]
[2025-03-04 16:05:50,890 INFO  L95    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2025-03-04 16:05:50,890 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-04 16:05:50,895 INFO  L108    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 53 statements into 2 equivalence classes.
[2025-03-04 16:05:50,904 INFO  L111    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 53 of 53 statements.
[2025-03-04 16:05:50,908 INFO  L114    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2025-03-04 16:05:50,908 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-04 16:05:50,908 INFO  L348             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2025-03-04 16:05:50,910 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes.
[2025-03-04 16:05:50,921 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements.
[2025-03-04 16:05:50,921 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-04 16:05:50,921 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-04 16:05:50,925 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2025-03-04 16:05:50,925 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-04 16:05:50,926 INFO  L85        PathProgramCache]: Analyzing trace with hash -260300833, now seen corresponding path program 2 times
[2025-03-04 16:05:50,926 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-04 16:05:50,926 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969633513]
[2025-03-04 16:05:50,926 INFO  L95    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2025-03-04 16:05:50,926 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-04 16:05:50,929 INFO  L108    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 8 statements into 2 equivalence classes.
[2025-03-04 16:05:50,930 INFO  L111    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 8 of 8 statements.
[2025-03-04 16:05:50,930 INFO  L114    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2025-03-04 16:05:50,930 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-04 16:05:50,930 INFO  L348             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2025-03-04 16:05:50,930 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes.
[2025-03-04 16:05:50,931 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements.
[2025-03-04 16:05:50,931 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-04 16:05:50,931 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-04 16:05:50,932 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2025-03-04 16:05:50,932 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-04 16:05:50,932 INFO  L85        PathProgramCache]: Analyzing trace with hash -475374080, now seen corresponding path program 3 times
[2025-03-04 16:05:50,932 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-04 16:05:50,932 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398528209]
[2025-03-04 16:05:50,932 INFO  L95    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2025-03-04 16:05:50,932 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-04 16:05:50,935 INFO  L108    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 61 statements into 26 equivalence classes.
[2025-03-04 16:05:50,946 INFO  L111    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 26 check-sat command(s) and asserted 61 of 61 statements.
[2025-03-04 16:05:50,947 INFO  L114    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 26 check-sat command(s)
[2025-03-04 16:05:50,947 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-04 16:05:50,947 INFO  L348             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2025-03-04 16:05:50,948 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 61 statements into 1 equivalence classes.
[2025-03-04 16:05:50,955 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 61 of 61 statements.
[2025-03-04 16:05:50,955 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-04 16:05:50,955 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is sat
[2025-03-04 16:05:50,958 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2025-03-04 16:05:50,995 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0
[2025-03-04 16:05:50,999 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0
[2025-03-04 16:05:51,005 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
[2025-03-04 16:05:51,036 INFO  L204          LassoAnalysis]: Preferences:
[2025-03-04 16:05:51,036 INFO  L125   ssoRankerPreferences]: Compute integeral hull: false
[2025-03-04 16:05:51,036 INFO  L126   ssoRankerPreferences]: Enable LassoPartitioneer: true
[2025-03-04 16:05:51,036 INFO  L127   ssoRankerPreferences]: Term annotations enabled: false
[2025-03-04 16:05:51,036 INFO  L128   ssoRankerPreferences]: Use exernal solver: true
[2025-03-04 16:05:51,036 INFO  L129   ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-04 16:05:51,036 INFO  L130   ssoRankerPreferences]: Dump SMT script to file: false
[2025-03-04 16:05:51,036 INFO  L131   ssoRankerPreferences]: Path of dumped script: 
[2025-03-04 16:05:51,036 INFO  L132   ssoRankerPreferences]: Filename of dumped script: nested_3.c_Iteration10_Loop
[2025-03-04 16:05:51,036 INFO  L133   ssoRankerPreferences]: MapElimAlgo: Frank
[2025-03-04 16:05:51,036 INFO  L241          LassoAnalysis]: Starting lasso preprocessing...
[2025-03-04 16:05:51,037 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-04 16:05:51,041 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-04 16:05:51,043 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-04 16:05:51,045 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-04 16:05:51,066 INFO  L259          LassoAnalysis]: Preprocessing complete.
[2025-03-04 16:05:51,066 INFO  L365          LassoAnalysis]: Checking for nontermination...
[2025-03-04 16:05:51,067 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-04 16:05:51,067 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-04 16:05:51,069 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)
[2025-03-04 16:05:51,070 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
[2025-03-04 16:05:51,071 INFO  L148   nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2025-03-04 16:05:51,071 INFO  L160   nArgumentSynthesizer]: Using integer mode.
[2025-03-04 16:05:51,088 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
[2025-03-04 16:05:51,088 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-04 16:05:51,089 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-04 16:05:51,090 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)
[2025-03-04 16:05:51,091 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
[2025-03-04 16:05:51,092 INFO  L148   nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2025-03-04 16:05:51,092 INFO  L160   nArgumentSynthesizer]: Using integer mode.
[2025-03-04 16:05:51,113 INFO  L405          LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2025-03-04 16:05:51,117 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0
[2025-03-04 16:05:51,117 INFO  L204          LassoAnalysis]: Preferences:
[2025-03-04 16:05:51,117 INFO  L125   ssoRankerPreferences]: Compute integeral hull: false
[2025-03-04 16:05:51,117 INFO  L126   ssoRankerPreferences]: Enable LassoPartitioneer: true
[2025-03-04 16:05:51,118 INFO  L127   ssoRankerPreferences]: Term annotations enabled: false
[2025-03-04 16:05:51,118 INFO  L128   ssoRankerPreferences]: Use exernal solver: false
[2025-03-04 16:05:51,118 INFO  L129   ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-04 16:05:51,118 INFO  L130   ssoRankerPreferences]: Dump SMT script to file: false
[2025-03-04 16:05:51,118 INFO  L131   ssoRankerPreferences]: Path of dumped script: 
[2025-03-04 16:05:51,118 INFO  L132   ssoRankerPreferences]: Filename of dumped script: nested_3.c_Iteration10_Loop
[2025-03-04 16:05:51,118 INFO  L133   ssoRankerPreferences]: MapElimAlgo: Frank
[2025-03-04 16:05:51,118 INFO  L241          LassoAnalysis]: Starting lasso preprocessing...
[2025-03-04 16:05:51,118 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-04 16:05:51,125 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-04 16:05:51,127 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-04 16:05:51,128 INFO  L118          MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2025-03-04 16:05:51,153 INFO  L259          LassoAnalysis]: Preprocessing complete.
[2025-03-04 16:05:51,153 INFO  L451          LassoAnalysis]: Using template 'affine'.
[2025-03-04 16:05:51,153 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-04 16:05:51,153 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-04 16:05:51,155 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)
[2025-03-04 16:05:51,156 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
[2025-03-04 16:05:51,157 INFO  L120   nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2025-03-04 16:05:51,166 INFO  L338   nArgumentSynthesizer]: Template has degree 0.
[2025-03-04 16:05:51,166 INFO  L351   nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2025-03-04 16:05:51,167 INFO  L203   nArgumentSynthesizer]: 1 stem disjuncts
[2025-03-04 16:05:51,167 INFO  L204   nArgumentSynthesizer]: 1 loop disjuncts
[2025-03-04 16:05:51,167 INFO  L205   nArgumentSynthesizer]: 2 template conjuncts.
[2025-03-04 16:05:51,169 INFO  L401   nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2025-03-04 16:05:51,169 INFO  L402   nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2025-03-04 16:05:51,171 INFO  L420   nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2025-03-04 16:05:51,172 INFO  L443   ModelExtractionUtils]: Simplification made 3 calls to the SMT solver.
[2025-03-04 16:05:51,172 INFO  L444   ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero.
[2025-03-04 16:05:51,173 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2025-03-04 16:05:51,173 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-04 16:05:51,175 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)
[2025-03-04 16:05:51,176 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
[2025-03-04 16:05:51,177 INFO  L435   nArgumentSynthesizer]: Simplifying supporting invariants...
[2025-03-04 16:05:51,177 INFO  L438   nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2025-03-04 16:05:51,177 INFO  L474          LassoAnalysis]: Proved termination.
[2025-03-04 16:05:51,177 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 []
[2025-03-04 16:05:51,183 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
[2025-03-04 16:05:51,183 INFO  L156   tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2025-03-04 16:05:51,193 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-04 16:05:51,201 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes.
[2025-03-04 16:05:51,218 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements.
[2025-03-04 16:05:51,218 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-04 16:05:51,218 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-04 16:05:51,219 INFO  L256         TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 2 conjuncts are in the unsatisfiable core
[2025-03-04 16:05:51,220 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-04 16:05:51,267 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes.
[2025-03-04 16:05:51,269 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements.
[2025-03-04 16:05:51,269 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-04 16:05:51,269 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-04 16:05:51,270 INFO  L256         TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjuncts are in the unsatisfiable core
[2025-03-04 16:05:51,270 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-04 16:05:51,305 INFO  L134       CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked.
[2025-03-04 16:05:51,305 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 
[2025-03-04 16:05:51,305 INFO  L71    iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 61 states and 70 transitions. cyclomatic complexity: 11 Second operand  has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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)
[2025-03-04 16:05:51,321 INFO  L75    iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 61 states and 70 transitions. cyclomatic complexity: 11. Second operand  has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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) Result 154 states and 178 transitions. Complement of second has 7 states.
[2025-03-04 16:05:51,322 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 
[2025-03-04 16:05:51,323 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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)
[2025-03-04 16:05:51,323 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions.
[2025-03-04 16:05:51,323 INFO  L84            BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 53 letters. Loop has 8 letters.
[2025-03-04 16:05:51,323 INFO  L116           BuchiAccepts]: Finished buchiAccepts.
[2025-03-04 16:05:51,324 INFO  L689   stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted
[2025-03-04 16:05:51,334 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-04 16:05:51,342 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes.
[2025-03-04 16:05:51,363 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements.
[2025-03-04 16:05:51,363 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-04 16:05:51,363 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-04 16:05:51,364 INFO  L256         TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 2 conjuncts are in the unsatisfiable core
[2025-03-04 16:05:51,367 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-04 16:05:51,418 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes.
[2025-03-04 16:05:51,422 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements.
[2025-03-04 16:05:51,422 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-04 16:05:51,422 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-04 16:05:51,422 INFO  L256         TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjuncts are in the unsatisfiable core
[2025-03-04 16:05:51,423 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-04 16:05:51,456 INFO  L134       CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked.
[2025-03-04 16:05:51,457 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 
[2025-03-04 16:05:51,457 INFO  L71    iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 61 states and 70 transitions. cyclomatic complexity: 11 Second operand  has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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)
[2025-03-04 16:05:51,471 INFO  L75    iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 61 states and 70 transitions. cyclomatic complexity: 11. Second operand  has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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) Result 154 states and 178 transitions. Complement of second has 7 states.
[2025-03-04 16:05:51,471 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 
[2025-03-04 16:05:51,472 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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)
[2025-03-04 16:05:51,472 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions.
[2025-03-04 16:05:51,472 INFO  L84            BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 53 letters. Loop has 8 letters.
[2025-03-04 16:05:51,472 INFO  L116           BuchiAccepts]: Finished buchiAccepts.
[2025-03-04 16:05:51,472 INFO  L689   stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted
[2025-03-04 16:05:51,481 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-04 16:05:51,491 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes.
[2025-03-04 16:05:51,508 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements.
[2025-03-04 16:05:51,508 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-04 16:05:51,508 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-04 16:05:51,509 INFO  L256         TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 2 conjuncts are in the unsatisfiable core
[2025-03-04 16:05:51,510 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-04 16:05:51,559 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes.
[2025-03-04 16:05:51,562 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements.
[2025-03-04 16:05:51,562 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-04 16:05:51,562 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-04 16:05:51,563 INFO  L256         TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjuncts are in the unsatisfiable core
[2025-03-04 16:05:51,563 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-04 16:05:51,593 INFO  L134       CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked.
[2025-03-04 16:05:51,594 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 
[2025-03-04 16:05:51,594 INFO  L71    iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 61 states and 70 transitions. cyclomatic complexity: 11 Second operand  has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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)
[2025-03-04 16:05:51,607 INFO  L75    iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 61 states and 70 transitions. cyclomatic complexity: 11. Second operand  has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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) Result 112 states and 130 transitions. Complement of second has 6 states.
[2025-03-04 16:05:51,607 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 
[2025-03-04 16:05:51,607 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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)
[2025-03-04 16:05:51,607 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions.
[2025-03-04 16:05:51,607 INFO  L84            BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 53 letters. Loop has 8 letters.
[2025-03-04 16:05:51,608 INFO  L116           BuchiAccepts]: Finished buchiAccepts.
[2025-03-04 16:05:51,608 INFO  L84            BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 61 letters. Loop has 8 letters.
[2025-03-04 16:05:51,608 INFO  L116           BuchiAccepts]: Finished buchiAccepts.
[2025-03-04 16:05:51,608 INFO  L84            BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 53 letters. Loop has 16 letters.
[2025-03-04 16:05:51,608 INFO  L116           BuchiAccepts]: Finished buchiAccepts.
[2025-03-04 16:05:51,608 INFO  L82        GeneralOperation]: Start removeNonLiveStates. Operand 112 states and 130 transitions.
[2025-03-04 16:05:51,609 INFO  L131   ngComponentsAnalysis]: Automaton has 0 accepting balls. 0
[2025-03-04 16:05:51,609 INFO  L88        GeneralOperation]: Finished removeNonLiveStates. Reduced from 112 states to 0 states and 0 transitions.
[2025-03-04 16:05:51,609 INFO  L87         BuchiClosureNwa]: Accepting states before buchiClosure: 0
[2025-03-04 16:05:51,609 INFO  L106        BuchiClosureNwa]: Accepting states after buchiClosure: 0
[2025-03-04 16:05:51,609 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions.
[2025-03-04 16:05:51,609 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2025-03-04 16:05:51,609 INFO  L218   hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions.
[2025-03-04 16:05:51,609 INFO  L240   hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions.
[2025-03-04 16:05:51,609 INFO  L432   stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions.
[2025-03-04 16:05:51,609 INFO  L338   stractBuchiCegarLoop]: ======== Iteration 11 ============
[2025-03-04 16:05:51,609 INFO  L72            BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions.
[2025-03-04 16:05:51,609 INFO  L131   ngComponentsAnalysis]: Automaton has 0 accepting balls. 0
[2025-03-04 16:05:51,609 INFO  L87            BuchiIsEmpty]: Finished buchiIsEmpty Result is true
[2025-03-04 16:05:51,615 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 04.03 04:05:51 BoogieIcfgContainer
[2025-03-04 16:05:51,616 INFO  L131        PluginConnector]: ------------------------ END BuchiAutomizer----------------------------
[2025-03-04 16:05:51,616 INFO  L112        PluginConnector]: ------------------------Witness Printer----------------------------
[2025-03-04 16:05:51,616 INFO  L270        PluginConnector]: Initializing Witness Printer...
[2025-03-04 16:05:51,616 INFO  L274        PluginConnector]: Witness Printer initialized
[2025-03-04 16:05:51,617 INFO  L184        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 04:05:47" (3/4) ...
[2025-03-04 16:05:51,618 INFO  L149         WitnessPrinter]: No result that supports witness generation found
[2025-03-04 16:05:51,619 INFO  L131        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2025-03-04 16:05:51,620 INFO  L158              Benchmark]: Toolchain (without parser) took 4497.85ms. Allocated memory was 142.6MB in the beginning and 285.2MB in the end (delta: 142.6MB). Free memory was 110.9MB in the beginning and 189.6MB in the end (delta: -78.7MB). Peak memory consumption was 65.8MB. Max. memory is 16.1GB.
[2025-03-04 16:05:51,620 INFO  L158              Benchmark]: CDTParser took 0.30ms. Allocated memory is still 201.3MB. Free memory is still 124.9MB. There was no memory consumed. Max. memory is 16.1GB.
[2025-03-04 16:05:51,620 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 125.37ms. Allocated memory is still 142.6MB. Free memory was 110.9MB in the beginning and 100.3MB in the end (delta: 10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2025-03-04 16:05:51,620 INFO  L158              Benchmark]: Boogie Procedure Inliner took 16.26ms. Allocated memory is still 142.6MB. Free memory was 100.3MB in the beginning and 99.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB.
[2025-03-04 16:05:51,620 INFO  L158              Benchmark]: Boogie Preprocessor took 14.94ms. Allocated memory is still 142.6MB. Free memory was 99.2MB in the beginning and 99.2MB in the end (delta: 69.7kB). There was no memory consumed. Max. memory is 16.1GB.
[2025-03-04 16:05:51,621 INFO  L158              Benchmark]: IcfgBuilder took 155.27ms. Allocated memory is still 142.6MB. Free memory was 99.2MB in the beginning and 88.9MB in the end (delta: 10.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2025-03-04 16:05:51,621 INFO  L158              Benchmark]: BuchiAutomizer took 4178.86ms. Allocated memory was 142.6MB in the beginning and 285.2MB in the end (delta: 142.6MB). Free memory was 88.9MB in the beginning and 190.8MB in the end (delta: -101.9MB). Peak memory consumption was 40.7MB. Max. memory is 16.1GB.
[2025-03-04 16:05:51,621 INFO  L158              Benchmark]: Witness Printer took 3.07ms. Allocated memory is still 285.2MB. Free memory was 190.8MB in the beginning and 189.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB.
[2025-03-04 16:05:51,622 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.30ms. Allocated memory is still 201.3MB. Free memory is still 124.9MB. There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 125.37ms. Allocated memory is still 142.6MB. Free memory was 110.9MB in the beginning and 100.3MB in the end (delta: 10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
 * Boogie Procedure Inliner took 16.26ms. Allocated memory is still 142.6MB. Free memory was 100.3MB in the beginning and 99.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB.
 * Boogie Preprocessor took 14.94ms. Allocated memory is still 142.6MB. Free memory was 99.2MB in the beginning and 99.2MB in the end (delta: 69.7kB). There was no memory consumed. Max. memory is 16.1GB.
 * IcfgBuilder took 155.27ms. Allocated memory is still 142.6MB. Free memory was 99.2MB in the beginning and 88.9MB in the end (delta: 10.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
 * BuchiAutomizer took 4178.86ms. Allocated memory was 142.6MB in the beginning and 285.2MB in the end (delta: 142.6MB). Free memory was 88.9MB in the beginning and 190.8MB in the end (delta: -101.9MB). Peak memory consumption was 40.7MB. Max. memory is 16.1GB.
 * Witness Printer took 3.07ms. Allocated memory is still 285.2MB. Free memory was 190.8MB in the beginning and 189.6MB in the end (delta: 1.2MB). 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 4.1s and 11 iterations.  TraceHistogramMax:36. Analysis of lassos took 2.8s. Construction of modules took 0.1s. Büchi inclusion checks took 1.1s. 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, 102 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 93 mSDsluCounter, 121 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 36 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 110 IncrementalHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 85 mSDtfsCounter, 110 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: 23ms 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!
[2025-03-04 16:05:51,631 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0
[2025-03-04 16:05:51,834 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2025-03-04 16:05:52,033 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2025-03-04 16:05:52,235 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2025-03-04 16:05:52,435 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