./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/image_filter.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version 551b0097
Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/image_filter.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7739edac33edee82d3c388da137105adbe48f8f59b0d45074d101ea06edef10e
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-551b009-m
[2025-01-09 00:52:15,359 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-01-09 00:52:15,415 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2025-01-09 00:52:15,419 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-01-09 00:52:15,419 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-01-09 00:52:15,447 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-01-09 00:52:15,448 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-01-09 00:52:15,448 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-01-09 00:52:15,448 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2025-01-09 00:52:15,448 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2025-01-09 00:52:15,448 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-01-09 00:52:15,449 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-01-09 00:52:15,449 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-01-09 00:52:15,449 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-01-09 00:52:15,449 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-01-09 00:52:15,449 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2025-01-09 00:52:15,449 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2025-01-09 00:52:15,449 INFO  L153        SettingsManager]:  * sizeof long=4
[2025-01-09 00:52:15,449 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2025-01-09 00:52:15,449 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2025-01-09 00:52:15,450 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2025-01-09 00:52:15,450 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2025-01-09 00:52:15,450 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2025-01-09 00:52:15,450 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2025-01-09 00:52:15,450 INFO  L153        SettingsManager]:  * sizeof long double=12
[2025-01-09 00:52:15,450 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2025-01-09 00:52:15,450 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2025-01-09 00:52:15,450 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2025-01-09 00:52:15,450 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2025-01-09 00:52:15,450 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-01-09 00:52:15,450 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2025-01-09 00:52:15,450 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-01-09 00:52:15,451 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-01-09 00:52:15,451 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-01-09 00:52:15,451 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-01-09 00:52:15,451 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2025-01-09 00:52:15,451 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-01-09 00:52:15,451 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-01-09 00:52:15,451 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-01-09 00:52:15,451 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-01-09 00:52:15,451 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2025-01-09 00:52:15,451 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2025-01-09 00:52:15,451 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-01-09 00:52:15,451 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-01-09 00:52:15,451 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2025-01-09 00:52:15,452 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-01-09 00:52:15,452 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2025-01-09 00:52:15,452 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-01-09 00:52:15,453 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )


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 -> 7739edac33edee82d3c388da137105adbe48f8f59b0d45074d101ea06edef10e
[2025-01-09 00:52:15,651 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-01-09 00:52:15,663 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-01-09 00:52:15,665 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-01-09 00:52:15,666 INFO  L270        PluginConnector]: Initializing CDTParser...
[2025-01-09 00:52:15,666 INFO  L274        PluginConnector]: CDTParser initialized
[2025-01-09 00:52:15,667 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/image_filter.c
[2025-01-09 00:52:16,781 INFO  L533              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1e7b91ffd/1a3bc2fdec7548189be8f8cf9994350f/FLAGc40569a9e
[2025-01-09 00:52:17,121 INFO  L384              CDTParser]: Found 1 translation units.
[2025-01-09 00:52:17,123 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-benchs/image_filter.c
[2025-01-09 00:52:17,134 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1e7b91ffd/1a3bc2fdec7548189be8f8cf9994350f/FLAGc40569a9e
[2025-01-09 00:52:17,376 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1e7b91ffd/1a3bc2fdec7548189be8f8cf9994350f
[2025-01-09 00:52:17,377 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-01-09 00:52:17,379 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2025-01-09 00:52:17,383 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2025-01-09 00:52:17,384 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2025-01-09 00:52:17,388 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2025-01-09 00:52:17,389 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 12:52:17" (1/1) ...
[2025-01-09 00:52:17,394 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7edbcd16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:52:17, skipping insertion in model container
[2025-01-09 00:52:17,394 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 12:52:17" (1/1) ...
[2025-01-09 00:52:17,409 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2025-01-09 00:52:17,488 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-benchs/image_filter.c[564,577]
[2025-01-09 00:52:17,530 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-01-09 00:52:17,536 INFO  L200         MainTranslator]: Completed pre-run
[2025-01-09 00:52:17,542 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-benchs/image_filter.c[564,577]
[2025-01-09 00:52:17,577 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-01-09 00:52:17,590 INFO  L204         MainTranslator]: Completed translation
[2025-01-09 00:52:17,590 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:52:17 WrapperNode
[2025-01-09 00:52:17,590 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2025-01-09 00:52:17,591 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2025-01-09 00:52:17,591 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2025-01-09 00:52:17,591 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2025-01-09 00:52:17,595 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:52:17" (1/1) ...
[2025-01-09 00:52:17,606 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:52:17" (1/1) ...
[2025-01-09 00:52:17,634 INFO  L138                Inliner]: procedures = 21, calls = 695, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 565
[2025-01-09 00:52:17,635 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2025-01-09 00:52:17,635 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-01-09 00:52:17,635 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-01-09 00:52:17,635 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-01-09 00:52:17,647 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:52:17" (1/1) ...
[2025-01-09 00:52:17,648 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:52:17" (1/1) ...
[2025-01-09 00:52:17,653 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:52:17" (1/1) ...
[2025-01-09 00:52:17,697 INFO  L175           MemorySlicer]: Split 428 memory accesses to 39 slices as follows [19, 19, 19, 18, 19, 19, 19, 19, 19, 2, 3, 3, 3, 3, 3, 3, 17, 3, 3, 22, 3, 3, 23, 3, 23, 3, 3, 19, 3, 19, 3, 3, 19, 3, 19, 3, 3, 19, 19]. 5 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. The 101 writes are split as follows [4, 4, 4, 4, 4, 4, 4, 4, 4, 0, 1, 1, 1, 1, 1, 1, 4, 1, 1, 6, 1, 1, 6, 1, 6, 1, 1, 4, 1, 4, 1, 1, 4, 1, 4, 1, 1, 4, 4].
[2025-01-09 00:52:17,700 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:52:17" (1/1) ...
[2025-01-09 00:52:17,701 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:52:17" (1/1) ...
[2025-01-09 00:52:17,737 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:52:17" (1/1) ...
[2025-01-09 00:52:17,739 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:52:17" (1/1) ...
[2025-01-09 00:52:17,745 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:52:17" (1/1) ...
[2025-01-09 00:52:17,752 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:52:17" (1/1) ...
[2025-01-09 00:52:17,760 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:52:17" (1/1) ...
[2025-01-09 00:52:17,774 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-01-09 00:52:17,778 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-01-09 00:52:17,778 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-01-09 00:52:17,778 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-01-09 00:52:17,779 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:52:17" (1/1) ...
[2025-01-09 00:52:17,786 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-01-09 00:52:17,795 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2025-01-09 00:52:17,812 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2025-01-09 00:52:17,817 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2025-01-09 00:52:17,834 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2025-01-09 00:52:17,834 INFO  L130     BoogieDeclarations]: Found specification of procedure sobel
[2025-01-09 00:52:17,834 INFO  L138     BoogieDeclarations]: Found implementation of procedure sobel
[2025-01-09 00:52:17,834 INFO  L130     BoogieDeclarations]: Found specification of procedure blur
[2025-01-09 00:52:17,834 INFO  L138     BoogieDeclarations]: Found implementation of procedure blur
[2025-01-09 00:52:17,835 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2025-01-09 00:52:17,835 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2025-01-09 00:52:17,835 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2025-01-09 00:52:17,835 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#1
[2025-01-09 00:52:17,835 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#2
[2025-01-09 00:52:17,835 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#3
[2025-01-09 00:52:17,835 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#4
[2025-01-09 00:52:17,835 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#5
[2025-01-09 00:52:17,835 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#6
[2025-01-09 00:52:17,835 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#7
[2025-01-09 00:52:17,835 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#8
[2025-01-09 00:52:17,835 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#9
[2025-01-09 00:52:17,835 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#10
[2025-01-09 00:52:17,836 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#11
[2025-01-09 00:52:17,836 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#12
[2025-01-09 00:52:17,836 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#13
[2025-01-09 00:52:17,836 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#14
[2025-01-09 00:52:17,836 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#15
[2025-01-09 00:52:17,836 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#16
[2025-01-09 00:52:17,836 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#17
[2025-01-09 00:52:17,836 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#18
[2025-01-09 00:52:17,836 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#19
[2025-01-09 00:52:17,836 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#20
[2025-01-09 00:52:17,837 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#21
[2025-01-09 00:52:17,837 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#22
[2025-01-09 00:52:17,837 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#23
[2025-01-09 00:52:17,837 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#24
[2025-01-09 00:52:17,837 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#25
[2025-01-09 00:52:17,837 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#26
[2025-01-09 00:52:17,837 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#27
[2025-01-09 00:52:17,837 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#28
[2025-01-09 00:52:17,838 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#29
[2025-01-09 00:52:17,839 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#30
[2025-01-09 00:52:17,839 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#31
[2025-01-09 00:52:17,839 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#32
[2025-01-09 00:52:17,839 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#33
[2025-01-09 00:52:17,839 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#34
[2025-01-09 00:52:17,840 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#35
[2025-01-09 00:52:17,840 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#36
[2025-01-09 00:52:17,840 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#37
[2025-01-09 00:52:17,840 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#38
[2025-01-09 00:52:17,840 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2025-01-09 00:52:17,840 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#0
[2025-01-09 00:52:17,840 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#1
[2025-01-09 00:52:17,840 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#2
[2025-01-09 00:52:17,840 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#3
[2025-01-09 00:52:17,840 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#4
[2025-01-09 00:52:17,840 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#5
[2025-01-09 00:52:17,841 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#6
[2025-01-09 00:52:17,841 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#7
[2025-01-09 00:52:17,841 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#8
[2025-01-09 00:52:17,841 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#9
[2025-01-09 00:52:17,841 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#10
[2025-01-09 00:52:17,841 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#11
[2025-01-09 00:52:17,841 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#12
[2025-01-09 00:52:17,841 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#13
[2025-01-09 00:52:17,841 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#14
[2025-01-09 00:52:17,841 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#15
[2025-01-09 00:52:17,841 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#16
[2025-01-09 00:52:17,841 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#17
[2025-01-09 00:52:17,842 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#18
[2025-01-09 00:52:17,842 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#19
[2025-01-09 00:52:17,842 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#20
[2025-01-09 00:52:17,842 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#21
[2025-01-09 00:52:17,842 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#22
[2025-01-09 00:52:17,842 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#23
[2025-01-09 00:52:17,842 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#24
[2025-01-09 00:52:17,842 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#25
[2025-01-09 00:52:17,842 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#26
[2025-01-09 00:52:17,842 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#27
[2025-01-09 00:52:17,843 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#28
[2025-01-09 00:52:17,843 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#29
[2025-01-09 00:52:17,843 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#30
[2025-01-09 00:52:17,843 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#31
[2025-01-09 00:52:17,843 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#32
[2025-01-09 00:52:17,843 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#33
[2025-01-09 00:52:17,844 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#34
[2025-01-09 00:52:17,844 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#35
[2025-01-09 00:52:17,844 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#36
[2025-01-09 00:52:17,844 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#37
[2025-01-09 00:52:17,844 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#38
[2025-01-09 00:52:17,844 INFO  L130     BoogieDeclarations]: Found specification of procedure filter
[2025-01-09 00:52:17,844 INFO  L138     BoogieDeclarations]: Found implementation of procedure filter
[2025-01-09 00:52:17,844 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#0
[2025-01-09 00:52:17,845 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#1
[2025-01-09 00:52:17,845 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#2
[2025-01-09 00:52:17,845 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#3
[2025-01-09 00:52:17,845 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#4
[2025-01-09 00:52:17,845 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#5
[2025-01-09 00:52:17,845 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#6
[2025-01-09 00:52:17,845 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#7
[2025-01-09 00:52:17,845 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#8
[2025-01-09 00:52:17,845 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#9
[2025-01-09 00:52:17,845 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#10
[2025-01-09 00:52:17,845 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#11
[2025-01-09 00:52:17,845 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#12
[2025-01-09 00:52:17,845 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#13
[2025-01-09 00:52:17,845 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#14
[2025-01-09 00:52:17,845 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#15
[2025-01-09 00:52:17,845 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#16
[2025-01-09 00:52:17,845 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#17
[2025-01-09 00:52:17,845 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#18
[2025-01-09 00:52:17,845 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#19
[2025-01-09 00:52:17,845 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#20
[2025-01-09 00:52:17,845 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#21
[2025-01-09 00:52:17,846 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#22
[2025-01-09 00:52:17,846 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#23
[2025-01-09 00:52:17,846 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#24
[2025-01-09 00:52:17,846 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#25
[2025-01-09 00:52:17,846 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#26
[2025-01-09 00:52:17,846 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#27
[2025-01-09 00:52:17,846 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#28
[2025-01-09 00:52:17,846 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#29
[2025-01-09 00:52:17,846 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#30
[2025-01-09 00:52:17,846 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#31
[2025-01-09 00:52:17,846 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#32
[2025-01-09 00:52:17,846 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#33
[2025-01-09 00:52:17,846 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#34
[2025-01-09 00:52:17,846 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#35
[2025-01-09 00:52:17,846 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#36
[2025-01-09 00:52:17,846 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#37
[2025-01-09 00:52:17,846 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#38
[2025-01-09 00:52:17,846 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2025-01-09 00:52:17,846 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2025-01-09 00:52:17,846 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2025-01-09 00:52:17,846 INFO  L138     BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2025-01-09 00:52:17,846 INFO  L130     BoogieDeclarations]: Found specification of procedure sobelitereen
[2025-01-09 00:52:17,846 INFO  L138     BoogieDeclarations]: Found implementation of procedure sobelitereen
[2025-01-09 00:52:17,846 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2025-01-09 00:52:18,085 INFO  L234             CfgBuilder]: Building ICFG
[2025-01-09 00:52:18,087 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-01-09 00:52:19,995 INFO  L?                        ?]: Removed 171 outVars from TransFormulas that were not future-live.
[2025-01-09 00:52:19,995 INFO  L283             CfgBuilder]: Performing block encoding
[2025-01-09 00:52:20,007 INFO  L307             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2025-01-09 00:52:20,008 INFO  L312             CfgBuilder]: Removed 0 assume(true) statements.
[2025-01-09 00:52:20,008 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 12:52:20 BoogieIcfgContainer
[2025-01-09 00:52:20,008 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-01-09 00:52:20,009 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-01-09 00:52:20,009 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-01-09 00:52:20,017 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-01-09 00:52:20,020 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 12:52:17" (1/3) ...
[2025-01-09 00:52:20,021 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70564a66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 12:52:20, skipping insertion in model container
[2025-01-09 00:52:20,021 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:52:17" (2/3) ...
[2025-01-09 00:52:20,021 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70564a66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 12:52:20, skipping insertion in model container
[2025-01-09 00:52:20,021 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 12:52:20" (3/3) ...
[2025-01-09 00:52:20,022 INFO  L128   eAbstractionObserver]: Analyzing ICFG image_filter.c
[2025-01-09 00:52:20,031 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-01-09 00:52:20,033 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG image_filter.c that has 7 procedures, 193 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2025-01-09 00:52:20,082 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-01-09 00:52:20,088 INFO  L333      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@69d5c5b5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-01-09 00:52:20,089 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-01-09 00:52:20,091 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 193 states, 113 states have (on average 1.2300884955752212) internal successors, (139), 114 states have internal predecessors, (139), 72 states have call successors, (72), 6 states have call predecessors, (72), 6 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72)
[2025-01-09 00:52:20,148 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1618
[2025-01-09 00:52:20,148 INFO  L210           NwaCegarLoop]: Found error trace
[2025-01-09 00:52:20,149 INFO  L218           NwaCegarLoop]: trace histogram [266, 266, 40, 40, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-01-09 00:52:20,150 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-01-09 00:52:20,153 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-01-09 00:52:20,154 INFO  L85        PathProgramCache]: Analyzing trace with hash -311961448, now seen corresponding path program 1 times
[2025-01-09 00:52:20,158 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-01-09 00:52:20,158 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232976532]
[2025-01-09 00:52:20,158 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-01-09 00:52:20,159 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-01-09 00:52:21,226 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1617 statements into 1 equivalence classes.
[2025-01-09 00:52:21,816 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1617 of 1617 statements.
[2025-01-09 00:52:21,816 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-01-09 00:52:21,816 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-01-09 00:52:23,883 INFO  L134       CoverageAnalysis]: Checked inductivity of 111861 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 111861 trivial. 0 not checked.
[2025-01-09 00:52:23,883 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-01-09 00:52:23,884 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232976532]
[2025-01-09 00:52:23,885 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232976532] provided 1 perfect and 0 imperfect interpolant sequences
[2025-01-09 00:52:23,885 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-01-09 00:52:23,885 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2025-01-09 00:52:23,886 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116170416]
[2025-01-09 00:52:23,887 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-01-09 00:52:23,892 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2025-01-09 00:52:23,893 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-01-09 00:52:23,910 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2025-01-09 00:52:23,911 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-01-09 00:52:23,913 INFO  L87              Difference]: Start difference. First operand  has 193 states, 113 states have (on average 1.2300884955752212) internal successors, (139), 114 states have internal predecessors, (139), 72 states have call successors, (72), 6 states have call predecessors, (72), 6 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) Second operand  has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (49), 1 states have call predecessors, (49), 1 states have call successors, (49)
[2025-01-09 00:52:24,070 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-01-09 00:52:24,070 INFO  L93              Difference]: Finished difference Result 389 states and 598 transitions.
[2025-01-09 00:52:24,073 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2025-01-09 00:52:24,074 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (49), 1 states have call predecessors, (49), 1 states have call successors, (49) Word has length 1617
[2025-01-09 00:52:24,079 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-01-09 00:52:24,093 INFO  L225             Difference]: With dead ends: 389
[2025-01-09 00:52:24,093 INFO  L226             Difference]: Without dead ends: 201
[2025-01-09 00:52:24,096 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-01-09 00:52:24,100 INFO  L435           NwaCegarLoop]: 279 mSDtfsCounter, 10 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2025-01-09 00:52:24,100 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 554 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-01-09 00:52:24,111 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 201 states.
[2025-01-09 00:52:24,139 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 190.
[2025-01-09 00:52:24,142 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 190 states, 111 states have (on average 1.2162162162162162) internal successors, (135), 112 states have internal predecessors, (135), 72 states have call successors, (72), 6 states have call predecessors, (72), 6 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71)
[2025-01-09 00:52:24,148 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 278 transitions.
[2025-01-09 00:52:24,149 INFO  L78                 Accepts]: Start accepts. Automaton has 190 states and 278 transitions. Word has length 1617
[2025-01-09 00:52:24,151 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-01-09 00:52:24,151 INFO  L471      AbstractCegarLoop]: Abstraction has 190 states and 278 transitions.
[2025-01-09 00:52:24,152 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (49), 1 states have call predecessors, (49), 1 states have call successors, (49)
[2025-01-09 00:52:24,152 INFO  L276                IsEmpty]: Start isEmpty. Operand 190 states and 278 transitions.
[2025-01-09 00:52:24,194 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2345
[2025-01-09 00:52:24,194 INFO  L210           NwaCegarLoop]: Found error trace
[2025-01-09 00:52:24,195 INFO  L218           NwaCegarLoop]: trace histogram [380, 380, 60, 60, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-01-09 00:52:24,196 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2025-01-09 00:52:24,196 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-01-09 00:52:24,196 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-01-09 00:52:24,197 INFO  L85        PathProgramCache]: Analyzing trace with hash -592817239, now seen corresponding path program 1 times
[2025-01-09 00:52:24,197 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-01-09 00:52:24,197 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466171632]
[2025-01-09 00:52:24,197 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-01-09 00:52:24,197 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-01-09 00:52:25,166 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2344 statements into 1 equivalence classes.
[2025-01-09 00:52:25,524 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2344 of 2344 statements.
[2025-01-09 00:52:25,524 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-01-09 00:52:25,524 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-01-09 00:52:28,304 INFO  L134       CoverageAnalysis]: Checked inductivity of 229308 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 229307 trivial. 0 not checked.
[2025-01-09 00:52:28,305 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-01-09 00:52:28,305 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466171632]
[2025-01-09 00:52:28,305 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466171632] provided 0 perfect and 1 imperfect interpolant sequences
[2025-01-09 00:52:28,305 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1290162415]
[2025-01-09 00:52:28,305 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-01-09 00:52:28,305 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-01-09 00:52:28,305 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2025-01-09 00:52:28,307 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2025-01-09 00:52:28,309 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2025-01-09 00:52:30,254 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2344 statements into 1 equivalence classes.
[2025-01-09 00:52:32,387 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2344 of 2344 statements.
[2025-01-09 00:52:32,387 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-01-09 00:52:32,387 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-01-09 00:52:32,481 INFO  L256         TraceCheckSpWp]: Trace formula consists of 21504 conjuncts, 3 conjuncts are in the unsatisfiable core
[2025-01-09 00:52:32,551 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-01-09 00:52:32,765 INFO  L134       CoverageAnalysis]: Checked inductivity of 229308 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 229307 trivial. 0 not checked.
[2025-01-09 00:52:32,765 INFO  L312         TraceCheckSpWp]: Computing backward predicates...
[2025-01-09 00:52:35,874 INFO  L134       CoverageAnalysis]: Checked inductivity of 229308 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 229307 trivial. 0 not checked.
[2025-01-09 00:52:35,874 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1290162415] provided 0 perfect and 2 imperfect interpolant sequences
[2025-01-09 00:52:35,874 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2025-01-09 00:52:35,875 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7
[2025-01-09 00:52:35,875 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685439886]
[2025-01-09 00:52:35,875 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2025-01-09 00:52:35,882 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2025-01-09 00:52:35,882 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-01-09 00:52:35,883 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2025-01-09 00:52:35,883 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2025-01-09 00:52:35,884 INFO  L87              Difference]: Start difference. First operand 190 states and 278 transitions. Second operand  has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 5 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (61), 4 states have call predecessors, (61), 4 states have call successors, (61)
[2025-01-09 00:52:36,251 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-01-09 00:52:36,251 INFO  L93              Difference]: Finished difference Result 288 states and 436 transitions.
[2025-01-09 00:52:36,252 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-01-09 00:52:36,253 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 5 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (61), 4 states have call predecessors, (61), 4 states have call successors, (61) Word has length 2344
[2025-01-09 00:52:36,260 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-01-09 00:52:36,263 INFO  L225             Difference]: With dead ends: 288
[2025-01-09 00:52:36,264 INFO  L226             Difference]: Without dead ends: 226
[2025-01-09 00:52:36,265 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 4690 GetRequests, 4685 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2025-01-09 00:52:36,266 INFO  L435           NwaCegarLoop]: 275 mSDtfsCounter, 29 mSDsluCounter, 813 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 1088 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2025-01-09 00:52:36,267 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 1088 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2025-01-09 00:52:36,268 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 226 states.
[2025-01-09 00:52:36,289 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226.
[2025-01-09 00:52:36,291 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 226 states, 135 states have (on average 1.2444444444444445) internal successors, (168), 136 states have internal predecessors, (168), 84 states have call successors, (84), 6 states have call predecessors, (84), 6 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83)
[2025-01-09 00:52:36,294 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 335 transitions.
[2025-01-09 00:52:36,295 INFO  L78                 Accepts]: Start accepts. Automaton has 226 states and 335 transitions. Word has length 2344
[2025-01-09 00:52:36,299 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-01-09 00:52:36,302 INFO  L471      AbstractCegarLoop]: Abstraction has 226 states and 335 transitions.
[2025-01-09 00:52:36,302 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 5 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (61), 4 states have call predecessors, (61), 4 states have call successors, (61)
[2025-01-09 00:52:36,303 INFO  L276                IsEmpty]: Start isEmpty. Operand 226 states and 335 transitions.
[2025-01-09 00:52:36,376 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4526
[2025-01-09 00:52:36,376 INFO  L210           NwaCegarLoop]: Found error trace
[2025-01-09 00:52:36,377 INFO  L218           NwaCegarLoop]: trace histogram [722, 722, 120, 120, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-01-09 00:52:36,421 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2025-01-09 00:52:36,583 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-01-09 00:52:36,584 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-01-09 00:52:36,586 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-01-09 00:52:36,587 INFO  L85        PathProgramCache]: Analyzing trace with hash -1098827176, now seen corresponding path program 2 times
[2025-01-09 00:52:36,587 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-01-09 00:52:36,587 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754522157]
[2025-01-09 00:52:36,587 INFO  L95    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2025-01-09 00:52:36,587 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-01-09 00:52:38,375 INFO  L108    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 4525 statements into 2 equivalence classes.
[2025-01-09 00:52:39,250 INFO  L111    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 4525 of 4525 statements.
[2025-01-09 00:52:39,250 INFO  L114    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2025-01-09 00:52:39,250 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-01-09 00:52:47,097 INFO  L134       CoverageAnalysis]: Checked inductivity of 832251 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 832175 trivial. 0 not checked.
[2025-01-09 00:52:47,097 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-01-09 00:52:47,097 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754522157]
[2025-01-09 00:52:47,097 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754522157] provided 0 perfect and 1 imperfect interpolant sequences
[2025-01-09 00:52:47,097 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1757105437]
[2025-01-09 00:52:47,098 INFO  L95    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2025-01-09 00:52:47,098 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-01-09 00:52:47,098 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2025-01-09 00:52:47,100 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2025-01-09 00:52:47,101 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2025-01-09 00:52:50,822 INFO  L108    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 4525 statements into 2 equivalence classes.
[2025-01-09 00:53:10,302 INFO  L111    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 4525 of 4525 statements.
[2025-01-09 00:53:10,303 INFO  L114    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2025-01-09 00:53:10,303 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-01-09 00:53:10,512 INFO  L256         TraceCheckSpWp]: Trace formula consists of 41172 conjuncts, 6 conjuncts are in the unsatisfiable core
[2025-01-09 00:53:10,572 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-01-09 00:53:10,817 INFO  L134       CoverageAnalysis]: Checked inductivity of 832251 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 832175 trivial. 0 not checked.
[2025-01-09 00:53:10,817 INFO  L312         TraceCheckSpWp]: Computing backward predicates...
[2025-01-09 00:53:16,104 INFO  L134       CoverageAnalysis]: Checked inductivity of 832251 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 832175 trivial. 0 not checked.
[2025-01-09 00:53:16,105 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1757105437] provided 0 perfect and 2 imperfect interpolant sequences
[2025-01-09 00:53:16,105 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2025-01-09 00:53:16,106 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13
[2025-01-09 00:53:16,106 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553172735]
[2025-01-09 00:53:16,106 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2025-01-09 00:53:16,109 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2025-01-09 00:53:16,109 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-01-09 00:53:16,110 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2025-01-09 00:53:16,110 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156
[2025-01-09 00:53:16,111 INFO  L87              Difference]: Start difference. First operand 226 states and 335 transitions. Second operand  has 13 states, 13 states have (on average 10.846153846153847) internal successors, (141), 13 states have internal predecessors, (141), 11 states have call successors, (86), 2 states have call predecessors, (86), 1 states have return successors, (85), 10 states have call predecessors, (85), 10 states have call successors, (85)
[2025-01-09 00:53:16,623 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-01-09 00:53:16,623 INFO  L93              Difference]: Finished difference Result 360 states and 553 transitions.
[2025-01-09 00:53:16,624 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2025-01-09 00:53:16,624 INFO  L78                 Accepts]: Start accepts. Automaton has  has 13 states, 13 states have (on average 10.846153846153847) internal successors, (141), 13 states have internal predecessors, (141), 11 states have call successors, (86), 2 states have call predecessors, (86), 1 states have return successors, (85), 10 states have call predecessors, (85), 10 states have call successors, (85) Word has length 4525
[2025-01-09 00:53:16,627 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-01-09 00:53:16,629 INFO  L225             Difference]: With dead ends: 360
[2025-01-09 00:53:16,629 INFO  L226             Difference]: Without dead ends: 298
[2025-01-09 00:53:16,630 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 9055 GetRequests, 9044 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156
[2025-01-09 00:53:16,630 INFO  L435           NwaCegarLoop]: 275 mSDtfsCounter, 77 mSDsluCounter, 867 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 1142 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2025-01-09 00:53:16,630 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 1142 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2025-01-09 00:53:16,631 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 298 states.
[2025-01-09 00:53:16,643 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298.
[2025-01-09 00:53:16,644 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 298 states, 183 states have (on average 1.278688524590164) internal successors, (234), 184 states have internal predecessors, (234), 108 states have call successors, (108), 6 states have call predecessors, (108), 6 states have return successors, (107), 107 states have call predecessors, (107), 107 states have call successors, (107)
[2025-01-09 00:53:16,646 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 449 transitions.
[2025-01-09 00:53:16,647 INFO  L78                 Accepts]: Start accepts. Automaton has 298 states and 449 transitions. Word has length 4525
[2025-01-09 00:53:16,649 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-01-09 00:53:16,649 INFO  L471      AbstractCegarLoop]: Abstraction has 298 states and 449 transitions.
[2025-01-09 00:53:16,650 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 13 states, 13 states have (on average 10.846153846153847) internal successors, (141), 13 states have internal predecessors, (141), 11 states have call successors, (86), 2 states have call predecessors, (86), 1 states have return successors, (85), 10 states have call predecessors, (85), 10 states have call successors, (85)
[2025-01-09 00:53:16,650 INFO  L276                IsEmpty]: Start isEmpty. Operand 298 states and 449 transitions.
[2025-01-09 00:53:16,906 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 8888
[2025-01-09 00:53:16,906 INFO  L210           NwaCegarLoop]: Found error trace
[2025-01-09 00:53:16,908 INFO  L218           NwaCegarLoop]: trace histogram [1406, 1406, 240, 240, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 30, 30, 30, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-01-09 00:53:17,003 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2025-01-09 00:53:17,109 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-01-09 00:53:17,109 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-01-09 00:53:17,110 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-01-09 00:53:17,111 INFO  L85        PathProgramCache]: Analyzing trace with hash 37277944, now seen corresponding path program 3 times
[2025-01-09 00:53:17,111 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-01-09 00:53:17,111 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896417643]
[2025-01-09 00:53:17,111 INFO  L95    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2025-01-09 00:53:17,111 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-01-09 00:53:20,255 INFO  L108    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 8887 statements into 207 equivalence classes.