./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 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/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/image_filter.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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(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-?-798a7b3-m
[2025-03-03 11:35:54,871 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-03-03 11:35:54,928 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2025-03-03 11:35:54,932 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-03-03 11:35:54,932 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-03-03 11:35:54,949 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-03-03 11:35:54,949 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-03-03 11:35:54,950 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-03-03 11:35:54,950 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2025-03-03 11:35:54,950 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2025-03-03 11:35:54,950 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-03-03 11:35:54,950 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-03-03 11:35:54,950 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-03-03 11:35:54,950 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-03-03 11:35:54,950 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-03-03 11:35:54,951 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2025-03-03 11:35:54,951 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2025-03-03 11:35:54,951 INFO  L153        SettingsManager]:  * sizeof long=4
[2025-03-03 11:35:54,951 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2025-03-03 11:35:54,952 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2025-03-03 11:35:54,952 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2025-03-03 11:35:54,952 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2025-03-03 11:35:54,952 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2025-03-03 11:35:54,952 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2025-03-03 11:35:54,952 INFO  L153        SettingsManager]:  * sizeof long double=12
[2025-03-03 11:35:54,953 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2025-03-03 11:35:54,953 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2025-03-03 11:35:54,953 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2025-03-03 11:35:54,953 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2025-03-03 11:35:54,953 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-03-03 11:35:54,953 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2025-03-03 11:35:54,953 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-03-03 11:35:54,953 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-03-03 11:35:54,953 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-03-03 11:35:54,953 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-03-03 11:35:54,954 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2025-03-03 11:35:54,954 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2025-03-03 11:35:54,954 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-03-03 11:35:54,954 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-03-03 11:35:54,954 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2025-03-03 11:35:54,954 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-03-03 11:35:54,954 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2025-03-03 11:35:54,954 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-03-03 11:35:54,954 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/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
[2025-03-03 11:35:55,184 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-03-03 11:35:55,192 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-03-03 11:35:55,194 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-03-03 11:35:55,195 INFO  L270        PluginConnector]: Initializing CDTParser...
[2025-03-03 11:35:55,195 INFO  L274        PluginConnector]: CDTParser initialized
[2025-03-03 11:35:55,196 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/image_filter.c
[2025-03-03 11:35:56,339 INFO  L533              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2830dfa29/bd6d87b9a15c443896f141f84f84fa49/FLAGeac8d4a71
[2025-03-03 11:35:56,571 INFO  L384              CDTParser]: Found 1 translation units.
[2025-03-03 11:35:56,572 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/image_filter.c
[2025-03-03 11:35:56,585 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2830dfa29/bd6d87b9a15c443896f141f84f84fa49/FLAGeac8d4a71
[2025-03-03 11:35:56,911 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2830dfa29/bd6d87b9a15c443896f141f84f84fa49
[2025-03-03 11:35:56,913 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-03-03 11:35:56,914 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2025-03-03 11:35:56,916 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2025-03-03 11:35:56,916 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2025-03-03 11:35:56,919 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2025-03-03 11:35:56,919 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 11:35:56" (1/1) ...
[2025-03-03 11:35:56,920 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24bab302 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:35:56, skipping insertion in model container
[2025-03-03 11:35:56,920 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 11:35:56" (1/1) ...
[2025-03-03 11:35:56,939 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2025-03-03 11:35:57,042 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/image_filter.c[564,577]
[2025-03-03 11:35:57,111 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-03-03 11:35:57,122 INFO  L200         MainTranslator]: Completed pre-run
[2025-03-03 11:35:57,129 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/image_filter.c[564,577]
[2025-03-03 11:35:57,171 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-03-03 11:35:57,181 INFO  L204         MainTranslator]: Completed translation
[2025-03-03 11:35:57,181 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:35:57 WrapperNode
[2025-03-03 11:35:57,181 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2025-03-03 11:35:57,183 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2025-03-03 11:35:57,183 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2025-03-03 11:35:57,183 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2025-03-03 11:35:57,187 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:35:57" (1/1) ...
[2025-03-03 11:35:57,207 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:35:57" (1/1) ...
[2025-03-03 11:35:57,241 INFO  L138                Inliner]: procedures = 21, calls = 695, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 565
[2025-03-03 11:35:57,241 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2025-03-03 11:35:57,242 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-03-03 11:35:57,242 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-03-03 11:35:57,242 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-03-03 11:35:57,248 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:35:57" (1/1) ...
[2025-03-03 11:35:57,248 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:35:57" (1/1) ...
[2025-03-03 11:35:57,253 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:35:57" (1/1) ...
[2025-03-03 11:35:57,276 INFO  L175           MemorySlicer]: Split 428 memory accesses to 39 slices as follows [19, 19, 19, 19, 3, 3, 3, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 19, 3, 19, 19, 19, 19, 23, 19, 22, 23, 19, 19, 19, 3, 19, 17, 18]. 5 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [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, 0, 0]. The 101 writes are split as follows [4, 4, 4, 4, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 4, 1, 4, 4, 4, 4, 6, 4, 6, 6, 4, 4, 4, 1, 4, 4, 4].
[2025-03-03 11:35:57,276 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:35:57" (1/1) ...
[2025-03-03 11:35:57,276 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:35:57" (1/1) ...
[2025-03-03 11:35:57,299 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:35:57" (1/1) ...
[2025-03-03 11:35:57,301 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:35:57" (1/1) ...
[2025-03-03 11:35:57,307 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:35:57" (1/1) ...
[2025-03-03 11:35:57,314 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:35:57" (1/1) ...
[2025-03-03 11:35:57,323 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-03-03 11:35:57,324 INFO  L112        PluginConnector]: ------------------------IcfgBuilder----------------------------
[2025-03-03 11:35:57,324 INFO  L270        PluginConnector]: Initializing IcfgBuilder...
[2025-03-03 11:35:57,324 INFO  L274        PluginConnector]: IcfgBuilder initialized
[2025-03-03 11:35:57,325 INFO  L184        PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:35:57" (1/1) ...
[2025-03-03 11:35:57,328 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-03-03 11:35:57,343 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-03 11:35:57,355 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2025-03-03 11:35:57,358 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2025-03-03 11:35:57,376 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2025-03-03 11:35:57,376 INFO  L130     BoogieDeclarations]: Found specification of procedure sobel
[2025-03-03 11:35:57,377 INFO  L138     BoogieDeclarations]: Found implementation of procedure sobel
[2025-03-03 11:35:57,377 INFO  L130     BoogieDeclarations]: Found specification of procedure blur
[2025-03-03 11:35:57,377 INFO  L138     BoogieDeclarations]: Found implementation of procedure blur
[2025-03-03 11:35:57,377 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2025-03-03 11:35:57,377 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2025-03-03 11:35:57,377 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2025-03-03 11:35:57,377 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#1
[2025-03-03 11:35:57,377 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#2
[2025-03-03 11:35:57,377 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#3
[2025-03-03 11:35:57,377 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#4
[2025-03-03 11:35:57,377 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#5
[2025-03-03 11:35:57,377 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#6
[2025-03-03 11:35:57,378 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#7
[2025-03-03 11:35:57,378 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#8
[2025-03-03 11:35:57,378 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#9
[2025-03-03 11:35:57,378 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#10
[2025-03-03 11:35:57,378 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#11
[2025-03-03 11:35:57,378 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#12
[2025-03-03 11:35:57,378 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#13
[2025-03-03 11:35:57,378 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#14
[2025-03-03 11:35:57,378 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#15
[2025-03-03 11:35:57,378 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#16
[2025-03-03 11:35:57,379 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#17
[2025-03-03 11:35:57,379 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#18
[2025-03-03 11:35:57,379 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#19
[2025-03-03 11:35:57,379 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#20
[2025-03-03 11:35:57,379 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#21
[2025-03-03 11:35:57,379 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#22
[2025-03-03 11:35:57,379 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#23
[2025-03-03 11:35:57,379 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#24
[2025-03-03 11:35:57,380 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#25
[2025-03-03 11:35:57,380 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#26
[2025-03-03 11:35:57,380 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#27
[2025-03-03 11:35:57,381 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#28
[2025-03-03 11:35:57,382 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#29
[2025-03-03 11:35:57,382 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#30
[2025-03-03 11:35:57,382 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#31
[2025-03-03 11:35:57,382 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#32
[2025-03-03 11:35:57,382 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#33
[2025-03-03 11:35:57,382 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#34
[2025-03-03 11:35:57,382 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#35
[2025-03-03 11:35:57,382 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#36
[2025-03-03 11:35:57,382 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#37
[2025-03-03 11:35:57,382 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#38
[2025-03-03 11:35:57,382 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2025-03-03 11:35:57,382 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#0
[2025-03-03 11:35:57,382 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#1
[2025-03-03 11:35:57,382 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#2
[2025-03-03 11:35:57,382 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#3
[2025-03-03 11:35:57,382 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#4
[2025-03-03 11:35:57,382 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#5
[2025-03-03 11:35:57,382 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#6
[2025-03-03 11:35:57,382 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#7
[2025-03-03 11:35:57,382 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#8
[2025-03-03 11:35:57,382 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#9
[2025-03-03 11:35:57,382 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#10
[2025-03-03 11:35:57,382 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#11
[2025-03-03 11:35:57,382 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#12
[2025-03-03 11:35:57,383 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#13
[2025-03-03 11:35:57,383 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#14
[2025-03-03 11:35:57,383 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#15
[2025-03-03 11:35:57,383 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#16
[2025-03-03 11:35:57,383 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#17
[2025-03-03 11:35:57,383 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#18
[2025-03-03 11:35:57,383 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#19
[2025-03-03 11:35:57,383 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#20
[2025-03-03 11:35:57,383 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#21
[2025-03-03 11:35:57,383 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#22
[2025-03-03 11:35:57,383 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#23
[2025-03-03 11:35:57,383 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#24
[2025-03-03 11:35:57,383 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#25
[2025-03-03 11:35:57,383 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#26
[2025-03-03 11:35:57,383 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#27
[2025-03-03 11:35:57,383 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#28
[2025-03-03 11:35:57,383 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#29
[2025-03-03 11:35:57,383 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#30
[2025-03-03 11:35:57,383 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#31
[2025-03-03 11:35:57,383 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#32
[2025-03-03 11:35:57,383 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#33
[2025-03-03 11:35:57,383 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#34
[2025-03-03 11:35:57,383 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#35
[2025-03-03 11:35:57,383 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#36
[2025-03-03 11:35:57,383 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#37
[2025-03-03 11:35:57,383 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#38
[2025-03-03 11:35:57,383 INFO  L130     BoogieDeclarations]: Found specification of procedure filter
[2025-03-03 11:35:57,383 INFO  L138     BoogieDeclarations]: Found implementation of procedure filter
[2025-03-03 11:35:57,383 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#0
[2025-03-03 11:35:57,383 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#1
[2025-03-03 11:35:57,383 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#2
[2025-03-03 11:35:57,383 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#3
[2025-03-03 11:35:57,383 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#4
[2025-03-03 11:35:57,383 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#5
[2025-03-03 11:35:57,383 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#6
[2025-03-03 11:35:57,383 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#7
[2025-03-03 11:35:57,383 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#8
[2025-03-03 11:35:57,383 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#9
[2025-03-03 11:35:57,383 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#10
[2025-03-03 11:35:57,383 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#11
[2025-03-03 11:35:57,384 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#12
[2025-03-03 11:35:57,384 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#13
[2025-03-03 11:35:57,384 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#14
[2025-03-03 11:35:57,384 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#15
[2025-03-03 11:35:57,384 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#16
[2025-03-03 11:35:57,384 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#17
[2025-03-03 11:35:57,384 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#18
[2025-03-03 11:35:57,384 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#19
[2025-03-03 11:35:57,384 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#20
[2025-03-03 11:35:57,384 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#21
[2025-03-03 11:35:57,384 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#22
[2025-03-03 11:35:57,384 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#23
[2025-03-03 11:35:57,384 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#24
[2025-03-03 11:35:57,384 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#25
[2025-03-03 11:35:57,384 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#26
[2025-03-03 11:35:57,384 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#27
[2025-03-03 11:35:57,384 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#28
[2025-03-03 11:35:57,384 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#29
[2025-03-03 11:35:57,384 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#30
[2025-03-03 11:35:57,384 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#31
[2025-03-03 11:35:57,384 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#32
[2025-03-03 11:35:57,384 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#33
[2025-03-03 11:35:57,386 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#34
[2025-03-03 11:35:57,386 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#35
[2025-03-03 11:35:57,386 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#36
[2025-03-03 11:35:57,386 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#37
[2025-03-03 11:35:57,386 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#38
[2025-03-03 11:35:57,386 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2025-03-03 11:35:57,386 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2025-03-03 11:35:57,387 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2025-03-03 11:35:57,387 INFO  L138     BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2025-03-03 11:35:57,387 INFO  L130     BoogieDeclarations]: Found specification of procedure sobelitereen
[2025-03-03 11:35:57,387 INFO  L138     BoogieDeclarations]: Found implementation of procedure sobelitereen
[2025-03-03 11:35:57,387 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2025-03-03 11:35:57,614 INFO  L256             CfgBuilder]: Building ICFG
[2025-03-03 11:35:57,616 INFO  L286             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-03-03 11:36:03,317 INFO  L1325  $ProcedureCfgBuilder]: dead code at ProgramPoint L122: call ULTIMATE.dealloc(main_~#x1~0#1.base, main_~#x1~0#1.offset);havoc main_~#x1~0#1.base, main_~#x1~0#1.offset;call ULTIMATE.dealloc(main_~#x2~0#1.base, main_~#x2~0#1.offset);havoc main_~#x2~0#1.base, main_~#x2~0#1.offset;call ULTIMATE.dealloc(main_~#x3~0#1.base, main_~#x3~0#1.offset);havoc main_~#x3~0#1.base, main_~#x3~0#1.offset;call ULTIMATE.dealloc(main_~#x4~0#1.base, main_~#x4~0#1.offset);havoc main_~#x4~0#1.base, main_~#x4~0#1.offset;call ULTIMATE.dealloc(main_~#x5~0#1.base, main_~#x5~0#1.offset);havoc main_~#x5~0#1.base, main_~#x5~0#1.offset;call ULTIMATE.dealloc(main_~#x6~0#1.base, main_~#x6~0#1.offset);havoc main_~#x6~0#1.base, main_~#x6~0#1.offset;call ULTIMATE.dealloc(main_~#x7~0#1.base, main_~#x7~0#1.offset);havoc main_~#x7~0#1.base, main_~#x7~0#1.offset;call ULTIMATE.dealloc(main_~#x8~0#1.base, main_~#x8~0#1.offset);havoc main_~#x8~0#1.base, main_~#x8~0#1.offset;call ULTIMATE.dealloc(main_~#x9~0#1.base, main_~#x9~0#1.offset);havoc main_~#x9~0#1.base, main_~#x9~0#1.offset;call ULTIMATE.dealloc(main_~#x10~0#1.base, main_~#x10~0#1.offset);havoc main_~#x10~0#1.base, main_~#x10~0#1.offset;call ULTIMATE.dealloc(main_~#x11~0#1.base, main_~#x11~0#1.offset);havoc main_~#x11~0#1.base, main_~#x11~0#1.offset;call ULTIMATE.dealloc(main_~#x12~0#1.base, main_~#x12~0#1.offset);havoc main_~#x12~0#1.base, main_~#x12~0#1.offset;call ULTIMATE.dealloc(main_~#x13~0#1.base, main_~#x13~0#1.offset);havoc main_~#x13~0#1.base, main_~#x13~0#1.offset;call ULTIMATE.dealloc(main_~#x14~0#1.base, main_~#x14~0#1.offset);havoc main_~#x14~0#1.base, main_~#x14~0#1.offset;call ULTIMATE.dealloc(main_~#x15~0#1.base, main_~#x15~0#1.offset);havoc main_~#x15~0#1.base, main_~#x15~0#1.offset;call ULTIMATE.dealloc(main_~#x16~0#1.base, main_~#x16~0#1.offset);havoc main_~#x16~0#1.base, main_~#x16~0#1.offset;call ULTIMATE.dealloc(main_~#x17~0#1.base, main_~#x17~0#1.offset);havoc main_~#x17~0#1.base, main_~#x17~0#1.offset;call ULTIMATE.dealloc(main_~#x18~0#1.base, main_~#x18~0#1.offset);havoc main_~#x18~0#1.base, main_~#x18~0#1.offset;call ULTIMATE.dealloc(main_~#x19~0#1.base, main_~#x19~0#1.offset);havoc main_~#x19~0#1.base, main_~#x19~0#1.offset;call ULTIMATE.dealloc(main_~#y1~1#1.base, main_~#y1~1#1.offset);havoc main_~#y1~1#1.base, main_~#y1~1#1.offset;call ULTIMATE.dealloc(main_~#y2~1#1.base, main_~#y2~1#1.offset);havoc main_~#y2~1#1.base, main_~#y2~1#1.offset;call ULTIMATE.dealloc(main_~#y3~1#1.base, main_~#y3~1#1.offset);havoc main_~#y3~1#1.base, main_~#y3~1#1.offset;call ULTIMATE.dealloc(main_~#y4~1#1.base, main_~#y4~1#1.offset);havoc main_~#y4~1#1.base, main_~#y4~1#1.offset;call ULTIMATE.dealloc(main_~#y5~1#1.base, main_~#y5~1#1.offset);havoc main_~#y5~1#1.base, main_~#y5~1#1.offset;call ULTIMATE.dealloc(main_~#y6~1#1.base, main_~#y6~1#1.offset);havoc main_~#y6~1#1.base, main_~#y6~1#1.offset;call ULTIMATE.dealloc(main_~#y7~1#1.base, main_~#y7~1#1.offset);havoc main_~#y7~1#1.base, main_~#y7~1#1.offset;call ULTIMATE.dealloc(main_~#y8~1#1.base, main_~#y8~1#1.offset);havoc main_~#y8~1#1.base, main_~#y8~1#1.offset;call ULTIMATE.dealloc(main_~#y9~1#1.base, main_~#y9~1#1.offset);havoc main_~#y9~1#1.base, main_~#y9~1#1.offset;call ULTIMATE.dealloc(main_~#y10~1#1.base, main_~#y10~1#1.offset);havoc main_~#y10~1#1.base, main_~#y10~1#1.offset;call ULTIMATE.dealloc(main_~#y11~1#1.base, main_~#y11~1#1.offset);havoc main_~#y11~1#1.base, main_~#y11~1#1.offset;call ULTIMATE.dealloc(main_~#y12~1#1.base, main_~#y12~1#1.offset);havoc main_~#y12~1#1.base, main_~#y12~1#1.offset;call ULTIMATE.dealloc(main_~#y13~1#1.base, main_~#y13~1#1.offset);havoc main_~#y13~1#1.base, main_~#y13~1#1.offset;call ULTIMATE.dealloc(main_~#y14~1#1.base, main_~#y14~1#1.offset);havoc main_~#y14~1#1.base, main_~#y14~1#1.offset;call ULTIMATE.dealloc(main_~#y15~1#1.base, main_~#y15~1#1.offset);havoc main_~#y15~1#1.base, main_~#y15~1#1.offset;call ULTIMATE.dealloc(main_~#y16~1#1.base, main_~#y16~1#1.offset);havoc main_~#y16~1#1.base, main_~#y16~1#1.offset;call ULTIMATE.dealloc(main_~#y17~1#1.base, main_~#y17~1#1.offset);havoc main_~#y17~1#1.base, main_~#y17~1#1.offset;call ULTIMATE.dealloc(main_~#y18~1#1.base, main_~#y18~1#1.offset);havoc main_~#y18~1#1.base, main_~#y18~1#1.offset;call ULTIMATE.dealloc(main_~#y19~1#1.base, main_~#y19~1#1.offset);havoc main_~#y19~1#1.base, main_~#y19~1#1.offset;
[2025-03-03 11:36:03,392 INFO  L?                        ?]: Removed 171 outVars from TransFormulas that were not future-live.
[2025-03-03 11:36:03,392 INFO  L307             CfgBuilder]: Performing block encoding
[2025-03-03 11:36:03,401 INFO  L331             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2025-03-03 11:36:03,402 INFO  L336             CfgBuilder]: Removed 0 assume(true) statements.
[2025-03-03 11:36:03,402 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 11:36:03 BoogieIcfgContainer
[2025-03-03 11:36:03,402 INFO  L131        PluginConnector]: ------------------------ END IcfgBuilder----------------------------
[2025-03-03 11:36:03,404 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-03-03 11:36:03,404 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-03-03 11:36:03,407 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-03-03 11:36:03,408 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 11:35:56" (1/3) ...
[2025-03-03 11:36:03,408 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d1d23ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 11:36:03, skipping insertion in model container
[2025-03-03 11:36:03,408 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 11:35:57" (2/3) ...
[2025-03-03 11:36:03,408 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d1d23ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 11:36:03, skipping insertion in model container
[2025-03-03 11:36:03,408 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 11:36:03" (3/3) ...
[2025-03-03 11:36:03,409 INFO  L128   eAbstractionObserver]: Analyzing ICFG image_filter.c
[2025-03-03 11:36:03,423 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-03-03 11:36:03,425 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.
[2025-03-03 11:36:03,469 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-03-03 11:36:03,476 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;@5ce23e57, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-03-03 11:36:03,476 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-03-03 11:36:03,481 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)
[2025-03-03 11:36:03,544 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1618
[2025-03-03 11:36:03,544 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 11:36:03,545 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]
[2025-03-03 11:36:03,545 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 11:36:03,550 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 11:36:03,551 INFO  L85        PathProgramCache]: Analyzing trace with hash -1914058879, now seen corresponding path program 1 times
[2025-03-03 11:36:03,555 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 11:36:03,556 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433845400]
[2025-03-03 11:36:03,556 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 11:36:03,556 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 11:36:04,523 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1617 statements into 1 equivalence classes.
[2025-03-03 11:36:05,171 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1617 of 1617 statements.
[2025-03-03 11:36:05,172 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 11:36:05,172 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 11:36:07,001 INFO  L134       CoverageAnalysis]: Checked inductivity of 111861 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 111861 trivial. 0 not checked.
[2025-03-03 11:36:07,004 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 11:36:07,004 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433845400]
[2025-03-03 11:36:07,004 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433845400] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-03 11:36:07,004 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-03 11:36:07,005 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2025-03-03 11:36:07,006 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995545890]
[2025-03-03 11:36:07,007 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-03 11:36:07,010 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2025-03-03 11:36:07,012 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 11:36:07,027 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2025-03-03 11:36:07,028 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-03-03 11:36:07,030 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)
[2025-03-03 11:36:07,315 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-03 11:36:07,316 INFO  L93              Difference]: Finished difference Result 389 states and 598 transitions.
[2025-03-03 11:36:07,317 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2025-03-03 11:36:07,317 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
[2025-03-03 11:36:07,322 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-03 11:36:07,328 INFO  L225             Difference]: With dead ends: 389
[2025-03-03 11:36:07,328 INFO  L226             Difference]: Without dead ends: 201
[2025-03-03 11:36:07,333 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
[2025-03-03 11:36:07,336 INFO  L435           NwaCegarLoop]: 279 mSDtfsCounter, 10 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time
[2025-03-03 11:36:07,336 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 554 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2025-03-03 11:36:07,347 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 201 states.
[2025-03-03 11:36:07,375 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 190.
[2025-03-03 11:36:07,376 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)
[2025-03-03 11:36:07,383 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 278 transitions.
[2025-03-03 11:36:07,385 INFO  L78                 Accepts]: Start accepts. Automaton has 190 states and 278 transitions. Word has length 1617
[2025-03-03 11:36:07,388 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-03 11:36:07,388 INFO  L471      AbstractCegarLoop]: Abstraction has 190 states and 278 transitions.
[2025-03-03 11:36:07,389 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)
[2025-03-03 11:36:07,391 INFO  L276                IsEmpty]: Start isEmpty. Operand 190 states and 278 transitions.
[2025-03-03 11:36:07,477 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2345
[2025-03-03 11:36:07,478 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 11:36:07,478 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]
[2025-03-03 11:36:07,479 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2025-03-03 11:36:07,479 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 11:36:07,481 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 11:36:07,481 INFO  L85        PathProgramCache]: Analyzing trace with hash 583947052, now seen corresponding path program 1 times
[2025-03-03 11:36:07,481 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 11:36:07,481 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052236051]
[2025-03-03 11:36:07,482 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 11:36:07,482 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 11:36:08,662 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2344 statements into 1 equivalence classes.
[2025-03-03 11:36:08,984 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2344 of 2344 statements.
[2025-03-03 11:36:08,984 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 11:36:08,984 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 11:36:11,594 INFO  L134       CoverageAnalysis]: Checked inductivity of 229308 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 229307 trivial. 0 not checked.
[2025-03-03 11:36:11,594 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 11:36:11,594 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052236051]
[2025-03-03 11:36:11,594 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052236051] provided 0 perfect and 1 imperfect interpolant sequences
[2025-03-03 11:36:11,594 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1871591515]
[2025-03-03 11:36:11,594 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 11:36:11,595 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-03-03 11:36:11,595 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-03 11:36:11,598 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)
[2025-03-03 11:36:11,600 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2025-03-03 11:36:13,489 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2344 statements into 1 equivalence classes.
[2025-03-03 11:36:15,250 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2344 of 2344 statements.
[2025-03-03 11:36:15,251 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 11:36:15,251 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 11:36:15,347 INFO  L256         TraceCheckSpWp]: Trace formula consists of 21504 conjuncts, 3 conjuncts are in the unsatisfiable core
[2025-03-03 11:36:15,404 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-03 11:36:15,584 INFO  L134       CoverageAnalysis]: Checked inductivity of 229308 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 229307 trivial. 0 not checked.
[2025-03-03 11:36:15,585 INFO  L312         TraceCheckSpWp]: Computing backward predicates...
[2025-03-03 11:36:18,318 INFO  L134       CoverageAnalysis]: Checked inductivity of 229308 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 229307 trivial. 0 not checked.
[2025-03-03 11:36:18,318 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1871591515] provided 0 perfect and 2 imperfect interpolant sequences
[2025-03-03 11:36:18,318 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2025-03-03 11:36:18,319 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7
[2025-03-03 11:36:18,319 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556610608]
[2025-03-03 11:36:18,319 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2025-03-03 11:36:18,322 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2025-03-03 11:36:18,323 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 11:36:18,323 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2025-03-03 11:36:18,323 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2025-03-03 11:36:18,324 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)
[2025-03-03 11:36:19,043 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-03 11:36:19,043 INFO  L93              Difference]: Finished difference Result 288 states and 436 transitions.
[2025-03-03 11:36:19,047 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-03-03 11:36:19,047 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
[2025-03-03 11:36:19,050 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-03 11:36:19,056 INFO  L225             Difference]: With dead ends: 288
[2025-03-03 11:36:19,060 INFO  L226             Difference]: Without dead ends: 226
[2025-03-03 11:36:19,060 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
[2025-03-03 11:36:19,061 INFO  L435           NwaCegarLoop]: 275 mSDtfsCounter, 29 mSDsluCounter, 813 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.7s IncrementalHoareTripleChecker+Time
[2025-03-03 11:36:19,061 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 1088 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2025-03-03 11:36:19,062 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 226 states.
[2025-03-03 11:36:19,073 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226.
[2025-03-03 11:36:19,073 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)
[2025-03-03 11:36:19,079 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 335 transitions.
[2025-03-03 11:36:19,079 INFO  L78                 Accepts]: Start accepts. Automaton has 226 states and 335 transitions. Word has length 2344
[2025-03-03 11:36:19,082 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-03 11:36:19,082 INFO  L471      AbstractCegarLoop]: Abstraction has 226 states and 335 transitions.
[2025-03-03 11:36:19,082 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)
[2025-03-03 11:36:19,082 INFO  L276                IsEmpty]: Start isEmpty. Operand 226 states and 335 transitions.
[2025-03-03 11:36:19,199 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4526
[2025-03-03 11:36:19,199 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 11:36:19,200 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]
[2025-03-03 11:36:19,241 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2025-03-03 11:36:19,401 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-03-03 11:36:19,405 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 11:36:19,405 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 11:36:19,406 INFO  L85        PathProgramCache]: Analyzing trace with hash 1663049409, now seen corresponding path program 2 times
[2025-03-03 11:36:19,406 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 11:36:19,406 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853111269]
[2025-03-03 11:36:19,406 INFO  L95    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2025-03-03 11:36:19,406 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 11:36:21,460 INFO  L108    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 4525 statements into 2 equivalence classes.
[2025-03-03 11:36:22,115 INFO  L111    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 4525 of 4525 statements.
[2025-03-03 11:36:22,116 INFO  L114    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2025-03-03 11:36:22,116 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 11:36:27,752 INFO  L134       CoverageAnalysis]: Checked inductivity of 832251 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 832175 trivial. 0 not checked.
[2025-03-03 11:36:27,756 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 11:36:27,756 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853111269]
[2025-03-03 11:36:27,756 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853111269] provided 0 perfect and 1 imperfect interpolant sequences
[2025-03-03 11:36:27,757 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1973659805]
[2025-03-03 11:36:27,757 INFO  L95    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2025-03-03 11:36:27,757 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-03-03 11:36:27,757 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-03 11:36:27,761 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)
[2025-03-03 11:36:27,762 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2025-03-03 11:36:31,472 INFO  L108    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 4525 statements into 2 equivalence classes.
[2025-03-03 11:36:35,350 INFO  L111    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 4525 of 4525 statements.
[2025-03-03 11:36:35,350 INFO  L114    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2025-03-03 11:36:35,350 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 11:36:35,588 INFO  L256         TraceCheckSpWp]: Trace formula consists of 41172 conjuncts, 6 conjuncts are in the unsatisfiable core
[2025-03-03 11:36:35,667 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-03 11:36:35,830 INFO  L134       CoverageAnalysis]: Checked inductivity of 832251 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 832175 trivial. 0 not checked.
[2025-03-03 11:36:35,830 INFO  L312         TraceCheckSpWp]: Computing backward predicates...
[2025-03-03 11:36:40,696 INFO  L134       CoverageAnalysis]: Checked inductivity of 832251 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 832175 trivial. 0 not checked.
[2025-03-03 11:36:40,696 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1973659805] provided 0 perfect and 2 imperfect interpolant sequences
[2025-03-03 11:36:40,696 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2025-03-03 11:36:40,697 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13
[2025-03-03 11:36:40,697 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877552160]
[2025-03-03 11:36:40,697 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2025-03-03 11:36:40,700 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2025-03-03 11:36:40,701 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 11:36:40,701 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2025-03-03 11:36:40,701 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156
[2025-03-03 11:36:40,702 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)
[2025-03-03 11:36:41,292 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-03 11:36:41,292 INFO  L93              Difference]: Finished difference Result 360 states and 553 transitions.
[2025-03-03 11:36:41,296 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2025-03-03 11:36:41,297 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
[2025-03-03 11:36:41,301 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-03 11:36:41,303 INFO  L225             Difference]: With dead ends: 360
[2025-03-03 11:36:41,303 INFO  L226             Difference]: Without dead ends: 298
[2025-03-03 11:36:41,304 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 9055 GetRequests, 9044 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156
[2025-03-03 11:36:41,304 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, 0.6s IncrementalHoareTripleChecker+Time
[2025-03-03 11:36:41,305 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 1142 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2025-03-03 11:36:41,305 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 298 states.
[2025-03-03 11:36:41,318 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298.
[2025-03-03 11:36:41,319 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)
[2025-03-03 11:36:41,321 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 449 transitions.
[2025-03-03 11:36:41,322 INFO  L78                 Accepts]: Start accepts. Automaton has 298 states and 449 transitions. Word has length 4525
[2025-03-03 11:36:41,328 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-03 11:36:41,328 INFO  L471      AbstractCegarLoop]: Abstraction has 298 states and 449 transitions.
[2025-03-03 11:36:41,328 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)
[2025-03-03 11:36:41,329 INFO  L276                IsEmpty]: Start isEmpty. Operand 298 states and 449 transitions.
[2025-03-03 11:36:41,591 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 8888
[2025-03-03 11:36:41,591 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 11:36:41,593 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]
[2025-03-03 11:36:41,691 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2025-03-03 11:36:41,794 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2
[2025-03-03 11:36:41,794 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 11:36:41,795 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 11:36:41,796 INFO  L85        PathProgramCache]: Analyzing trace with hash 1411780001, now seen corresponding path program 3 times
[2025-03-03 11:36:41,796 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 11:36:41,796 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652075910]
[2025-03-03 11:36:41,796 INFO  L95    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2025-03-03 11:36:41,796 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 11:36:45,126 INFO  L108    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 8887 statements into 207 equivalence classes.