./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 8fc3dc66
Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/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-?-8fc3dc6-m
[2025-03-16 15:54:15,149 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-03-16 15:54:15,203 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2025-03-16 15:54:15,208 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-03-16 15:54:15,209 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-03-16 15:54:15,231 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-03-16 15:54:15,232 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-03-16 15:54:15,232 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-03-16 15:54:15,232 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2025-03-16 15:54:15,232 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2025-03-16 15:54:15,232 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-03-16 15:54:15,232 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-03-16 15:54:15,232 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-03-16 15:54:15,232 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-03-16 15:54:15,232 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-03-16 15:54:15,232 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2025-03-16 15:54:15,234 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2025-03-16 15:54:15,234 INFO  L153        SettingsManager]:  * sizeof long=4
[2025-03-16 15:54:15,234 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2025-03-16 15:54:15,234 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2025-03-16 15:54:15,235 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2025-03-16 15:54:15,235 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2025-03-16 15:54:15,235 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2025-03-16 15:54:15,235 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2025-03-16 15:54:15,235 INFO  L153        SettingsManager]:  * sizeof long double=12
[2025-03-16 15:54:15,235 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2025-03-16 15:54:15,235 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2025-03-16 15:54:15,235 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2025-03-16 15:54:15,235 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2025-03-16 15:54:15,235 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-03-16 15:54:15,235 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2025-03-16 15:54:15,236 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-03-16 15:54:15,236 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-03-16 15:54:15,236 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-03-16 15:54:15,236 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-03-16 15:54:15,236 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2025-03-16 15:54:15,236 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2025-03-16 15:54:15,237 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-03-16 15:54:15,237 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-03-16 15:54:15,237 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2025-03-16 15:54:15,237 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-03-16 15:54:15,237 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2025-03-16 15:54:15,237 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-03-16 15:54:15,237 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
[2025-03-16 15:54:15,469 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-03-16 15:54:15,477 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-03-16 15:54:15,479 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-03-16 15:54:15,480 INFO  L270        PluginConnector]: Initializing CDTParser...
[2025-03-16 15:54:15,480 INFO  L274        PluginConnector]: CDTParser initialized
[2025-03-16 15:54:15,481 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/image_filter.c
[2025-03-16 15:54:16,607 INFO  L533              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8538ea3b3/0fbd488b563b446486fa50cd4b7d8007/FLAGee6bd955f
[2025-03-16 15:54:16,823 INFO  L384              CDTParser]: Found 1 translation units.
[2025-03-16 15:54:16,824 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/image_filter.c
[2025-03-16 15:54:16,830 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8538ea3b3/0fbd488b563b446486fa50cd4b7d8007/FLAGee6bd955f
[2025-03-16 15:54:17,179 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8538ea3b3/0fbd488b563b446486fa50cd4b7d8007
[2025-03-16 15:54:17,181 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-03-16 15:54:17,182 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2025-03-16 15:54:17,183 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2025-03-16 15:54:17,183 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2025-03-16 15:54:17,185 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2025-03-16 15:54:17,186 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 03:54:17" (1/1) ...
[2025-03-16 15:54:17,187 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79c7fe49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:54:17, skipping insertion in model container
[2025-03-16 15:54:17,187 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 03:54:17" (1/1) ...
[2025-03-16 15:54:17,204 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2025-03-16 15:54:17,311 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]
[2025-03-16 15:54:17,378 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-03-16 15:54:17,391 INFO  L200         MainTranslator]: Completed pre-run
[2025-03-16 15:54:17,400 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]
[2025-03-16 15:54:17,450 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-03-16 15:54:17,460 INFO  L204         MainTranslator]: Completed translation
[2025-03-16 15:54:17,461 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:54:17 WrapperNode
[2025-03-16 15:54:17,461 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2025-03-16 15:54:17,462 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2025-03-16 15:54:17,462 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2025-03-16 15:54:17,462 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2025-03-16 15:54:17,465 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:54:17" (1/1) ...
[2025-03-16 15:54:17,482 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:54:17" (1/1) ...
[2025-03-16 15:54:17,516 INFO  L138                Inliner]: procedures = 21, calls = 695, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 565
[2025-03-16 15:54:17,521 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2025-03-16 15:54:17,521 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-03-16 15:54:17,521 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-03-16 15:54:17,522 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-03-16 15:54:17,529 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:54:17" (1/1) ...
[2025-03-16 15:54:17,529 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:54:17" (1/1) ...
[2025-03-16 15:54:17,535 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:54:17" (1/1) ...
[2025-03-16 15:54:17,572 INFO  L175           MemorySlicer]: Split 428 memory accesses to 39 slices as follows [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 17, 22, 18, 23, 19, 23, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 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, 0, 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]. The 101 writes are split as follows [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 4, 6, 4, 6, 4, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4].
[2025-03-16 15:54:17,578 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:54:17" (1/1) ...
[2025-03-16 15:54:17,579 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:54:17" (1/1) ...
[2025-03-16 15:54:17,597 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:54:17" (1/1) ...
[2025-03-16 15:54:17,599 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:54:17" (1/1) ...
[2025-03-16 15:54:17,608 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:54:17" (1/1) ...
[2025-03-16 15:54:17,611 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:54:17" (1/1) ...
[2025-03-16 15:54:17,627 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-03-16 15:54:17,631 INFO  L112        PluginConnector]: ------------------------IcfgBuilder----------------------------
[2025-03-16 15:54:17,631 INFO  L270        PluginConnector]: Initializing IcfgBuilder...
[2025-03-16 15:54:17,631 INFO  L274        PluginConnector]: IcfgBuilder initialized
[2025-03-16 15:54:17,632 INFO  L184        PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:54:17" (1/1) ...
[2025-03-16 15:54:17,637 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-03-16 15:54:17,646 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-16 15:54:17,658 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)
[2025-03-16 15:54:17,660 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
[2025-03-16 15:54:17,678 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2025-03-16 15:54:17,678 INFO  L130     BoogieDeclarations]: Found specification of procedure sobel
[2025-03-16 15:54:17,678 INFO  L138     BoogieDeclarations]: Found implementation of procedure sobel
[2025-03-16 15:54:17,679 INFO  L130     BoogieDeclarations]: Found specification of procedure blur
[2025-03-16 15:54:17,679 INFO  L138     BoogieDeclarations]: Found implementation of procedure blur
[2025-03-16 15:54:17,679 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2025-03-16 15:54:17,679 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2025-03-16 15:54:17,679 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2025-03-16 15:54:17,679 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#1
[2025-03-16 15:54:17,679 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#2
[2025-03-16 15:54:17,679 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#3
[2025-03-16 15:54:17,679 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#4
[2025-03-16 15:54:17,679 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#5
[2025-03-16 15:54:17,679 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#6
[2025-03-16 15:54:17,680 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#7
[2025-03-16 15:54:17,680 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#8
[2025-03-16 15:54:17,680 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#9
[2025-03-16 15:54:17,680 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#10
[2025-03-16 15:54:17,680 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#11
[2025-03-16 15:54:17,680 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#12
[2025-03-16 15:54:17,681 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#13
[2025-03-16 15:54:17,681 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#14
[2025-03-16 15:54:17,681 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#15
[2025-03-16 15:54:17,681 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#16
[2025-03-16 15:54:17,681 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#17
[2025-03-16 15:54:17,681 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#18
[2025-03-16 15:54:17,681 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#19
[2025-03-16 15:54:17,681 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#20
[2025-03-16 15:54:17,682 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#21
[2025-03-16 15:54:17,682 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#22
[2025-03-16 15:54:17,682 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#23
[2025-03-16 15:54:17,682 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#24
[2025-03-16 15:54:17,682 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#25
[2025-03-16 15:54:17,682 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#26
[2025-03-16 15:54:17,682 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#27
[2025-03-16 15:54:17,682 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#28
[2025-03-16 15:54:17,683 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#29
[2025-03-16 15:54:17,683 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#30
[2025-03-16 15:54:17,683 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#31
[2025-03-16 15:54:17,683 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#32
[2025-03-16 15:54:17,683 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#33
[2025-03-16 15:54:17,683 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#34
[2025-03-16 15:54:17,683 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#35
[2025-03-16 15:54:17,683 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#36
[2025-03-16 15:54:17,683 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#37
[2025-03-16 15:54:17,683 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#38
[2025-03-16 15:54:17,683 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2025-03-16 15:54:17,683 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#0
[2025-03-16 15:54:17,684 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#1
[2025-03-16 15:54:17,684 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#2
[2025-03-16 15:54:17,684 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#3
[2025-03-16 15:54:17,684 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#4
[2025-03-16 15:54:17,684 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#5
[2025-03-16 15:54:17,684 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#6
[2025-03-16 15:54:17,684 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#7
[2025-03-16 15:54:17,685 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#8
[2025-03-16 15:54:17,685 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#9
[2025-03-16 15:54:17,685 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#10
[2025-03-16 15:54:17,685 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#11
[2025-03-16 15:54:17,685 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#12
[2025-03-16 15:54:17,685 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#13
[2025-03-16 15:54:17,685 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#14
[2025-03-16 15:54:17,685 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#15
[2025-03-16 15:54:17,685 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#16
[2025-03-16 15:54:17,686 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#17
[2025-03-16 15:54:17,686 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#18
[2025-03-16 15:54:17,686 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#19
[2025-03-16 15:54:17,686 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#20
[2025-03-16 15:54:17,686 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#21
[2025-03-16 15:54:17,686 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#22
[2025-03-16 15:54:17,686 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#23
[2025-03-16 15:54:17,686 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#24
[2025-03-16 15:54:17,686 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#25
[2025-03-16 15:54:17,686 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#26
[2025-03-16 15:54:17,686 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#27
[2025-03-16 15:54:17,686 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#28
[2025-03-16 15:54:17,686 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#29
[2025-03-16 15:54:17,686 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#30
[2025-03-16 15:54:17,686 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#31
[2025-03-16 15:54:17,686 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#32
[2025-03-16 15:54:17,686 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#33
[2025-03-16 15:54:17,687 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#34
[2025-03-16 15:54:17,687 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#35
[2025-03-16 15:54:17,687 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#36
[2025-03-16 15:54:17,688 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#37
[2025-03-16 15:54:17,688 INFO  L130     BoogieDeclarations]: Found specification of procedure read~real#38
[2025-03-16 15:54:17,688 INFO  L130     BoogieDeclarations]: Found specification of procedure filter
[2025-03-16 15:54:17,688 INFO  L138     BoogieDeclarations]: Found implementation of procedure filter
[2025-03-16 15:54:17,688 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#0
[2025-03-16 15:54:17,688 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#1
[2025-03-16 15:54:17,688 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#2
[2025-03-16 15:54:17,688 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#3
[2025-03-16 15:54:17,688 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#4
[2025-03-16 15:54:17,688 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#5
[2025-03-16 15:54:17,688 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#6
[2025-03-16 15:54:17,688 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#7
[2025-03-16 15:54:17,688 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#8
[2025-03-16 15:54:17,688 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#9
[2025-03-16 15:54:17,688 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#10
[2025-03-16 15:54:17,688 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#11
[2025-03-16 15:54:17,688 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#12
[2025-03-16 15:54:17,688 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#13
[2025-03-16 15:54:17,688 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#14
[2025-03-16 15:54:17,688 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#15
[2025-03-16 15:54:17,688 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#16
[2025-03-16 15:54:17,688 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#17
[2025-03-16 15:54:17,688 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#18
[2025-03-16 15:54:17,688 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#19
[2025-03-16 15:54:17,688 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#20
[2025-03-16 15:54:17,688 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#21
[2025-03-16 15:54:17,688 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#22
[2025-03-16 15:54:17,688 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#23
[2025-03-16 15:54:17,688 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#24
[2025-03-16 15:54:17,689 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#25
[2025-03-16 15:54:17,689 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#26
[2025-03-16 15:54:17,689 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#27
[2025-03-16 15:54:17,689 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#28
[2025-03-16 15:54:17,689 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#29
[2025-03-16 15:54:17,689 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#30
[2025-03-16 15:54:17,689 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#31
[2025-03-16 15:54:17,689 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#32
[2025-03-16 15:54:17,689 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#33
[2025-03-16 15:54:17,689 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#34
[2025-03-16 15:54:17,689 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#35
[2025-03-16 15:54:17,689 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#36
[2025-03-16 15:54:17,689 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#37
[2025-03-16 15:54:17,689 INFO  L130     BoogieDeclarations]: Found specification of procedure write~real#38
[2025-03-16 15:54:17,689 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2025-03-16 15:54:17,689 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2025-03-16 15:54:17,689 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2025-03-16 15:54:17,689 INFO  L138     BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2025-03-16 15:54:17,689 INFO  L130     BoogieDeclarations]: Found specification of procedure sobelitereen
[2025-03-16 15:54:17,689 INFO  L138     BoogieDeclarations]: Found implementation of procedure sobelitereen
[2025-03-16 15:54:17,689 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2025-03-16 15:54:17,950 INFO  L256             CfgBuilder]: Building ICFG
[2025-03-16 15:54:17,952 INFO  L286             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-03-16 15:54:23,688 INFO  L1322  $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;
[2025-03-16 15:54:23,771 INFO  L?                        ?]: Removed 171 outVars from TransFormulas that were not future-live.
[2025-03-16 15:54:23,771 INFO  L307             CfgBuilder]: Performing block encoding
[2025-03-16 15:54:23,781 INFO  L331             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2025-03-16 15:54:23,783 INFO  L336             CfgBuilder]: Removed 0 assume(true) statements.
[2025-03-16 15:54:23,783 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 03:54:23 BoogieIcfgContainer
[2025-03-16 15:54:23,783 INFO  L131        PluginConnector]: ------------------------ END IcfgBuilder----------------------------
[2025-03-16 15:54:23,785 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-03-16 15:54:23,785 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-03-16 15:54:23,788 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-03-16 15:54:23,788 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.03 03:54:17" (1/3) ...
[2025-03-16 15:54:23,788 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a27e217 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 03:54:23, skipping insertion in model container
[2025-03-16 15:54:23,789 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:54:17" (2/3) ...
[2025-03-16 15:54:23,789 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a27e217 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 03:54:23, skipping insertion in model container
[2025-03-16 15:54:23,789 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 03:54:23" (3/3) ...
[2025-03-16 15:54:23,790 INFO  L128   eAbstractionObserver]: Analyzing ICFG image_filter.c
[2025-03-16 15:54:23,800 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-03-16 15:54:23,801 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG image_filter.c that has 7 procedures, 192 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2025-03-16 15:54:23,841 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-03-16 15:54:23,848 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;@74154cbd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-03-16 15:54:23,849 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-03-16 15:54:23,853 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 192 states, 112 states have (on average 1.2321428571428572) internal successors, (138), 113 states have internal predecessors, (138), 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)
[2025-03-16 15:54:23,907 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1617
[2025-03-16 15:54:23,907 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 15:54:23,909 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]
[2025-03-16 15:54:23,910 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 15:54:23,914 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 15:54:23,914 INFO  L85        PathProgramCache]: Analyzing trace with hash -602956943, now seen corresponding path program 1 times
[2025-03-16 15:54:23,919 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 15:54:23,919 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669050348]
[2025-03-16 15:54:23,920 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 15:54:23,920 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 15:54:24,872 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1616 statements into 1 equivalence classes.
[2025-03-16 15:54:25,477 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1616 of 1616 statements.
[2025-03-16 15:54:25,478 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 15:54:25,478 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 15:54:27,403 INFO  L134       CoverageAnalysis]: Checked inductivity of 111861 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 111861 trivial. 0 not checked.
[2025-03-16 15:54:27,405 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-16 15:54:27,405 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669050348]
[2025-03-16 15:54:27,406 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669050348] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-16 15:54:27,406 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-16 15:54:27,407 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2025-03-16 15:54:27,408 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988725282]
[2025-03-16 15:54:27,408 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-16 15:54:27,413 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2025-03-16 15:54:27,415 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-16 15:54:27,429 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2025-03-16 15:54:27,430 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-03-16 15:54:27,432 INFO  L87              Difference]: Start difference. First operand  has 192 states, 112 states have (on average 1.2321428571428572) internal successors, (138), 113 states have internal predecessors, (138), 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 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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)
[2025-03-16 15:54:27,616 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-16 15:54:27,617 INFO  L93              Difference]: Finished difference Result 388 states and 597 transitions.
[2025-03-16 15:54:27,619 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2025-03-16 15:54:27,620 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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 1616
[2025-03-16 15:54:27,627 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-16 15:54:27,638 INFO  L225             Difference]: With dead ends: 388
[2025-03-16 15:54:27,638 INFO  L226             Difference]: Without dead ends: 200
[2025-03-16 15:54:27,643 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
[2025-03-16 15:54:27,648 INFO  L435           NwaCegarLoop]: 278 mSDtfsCounter, 10 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 552 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
[2025-03-16 15:54:27,649 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 552 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-03-16 15:54:27,661 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 200 states.
[2025-03-16 15:54:27,696 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 189.
[2025-03-16 15:54:27,698 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 189 states, 110 states have (on average 1.2181818181818183) internal successors, (134), 111 states have internal predecessors, (134), 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)
[2025-03-16 15:54:27,705 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 277 transitions.
[2025-03-16 15:54:27,708 INFO  L78                 Accepts]: Start accepts. Automaton has 189 states and 277 transitions. Word has length 1616
[2025-03-16 15:54:27,711 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-16 15:54:27,711 INFO  L471      AbstractCegarLoop]: Abstraction has 189 states and 277 transitions.
[2025-03-16 15:54:27,712 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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)
[2025-03-16 15:54:27,712 INFO  L276                IsEmpty]: Start isEmpty. Operand 189 states and 277 transitions.
[2025-03-16 15:54:27,793 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2344
[2025-03-16 15:54:27,793 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 15:54:27,794 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]
[2025-03-16 15:54:27,794 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2025-03-16 15:54:27,794 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 15:54:27,796 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 15:54:27,796 INFO  L85        PathProgramCache]: Analyzing trace with hash 97606512, now seen corresponding path program 1 times
[2025-03-16 15:54:27,796 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 15:54:27,796 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310027661]
[2025-03-16 15:54:27,796 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 15:54:27,797 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 15:54:29,007 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2343 statements into 1 equivalence classes.
[2025-03-16 15:54:29,405 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2343 of 2343 statements.
[2025-03-16 15:54:29,405 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 15:54:29,405 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 15:54:31,600 INFO  L134       CoverageAnalysis]: Checked inductivity of 229308 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 229307 trivial. 0 not checked.
[2025-03-16 15:54:31,600 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-16 15:54:31,601 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310027661]
[2025-03-16 15:54:31,601 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310027661] provided 0 perfect and 1 imperfect interpolant sequences
[2025-03-16 15:54:31,601 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [727914827]
[2025-03-16 15:54:31,601 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 15:54:31,601 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-03-16 15:54:31,602 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-16 15:54:31,604 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)
[2025-03-16 15:54:31,605 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2025-03-16 15:54:33,767 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2343 statements into 1 equivalence classes.
[2025-03-16 15:54:35,527 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2343 of 2343 statements.
[2025-03-16 15:54:35,528 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 15:54:35,528 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 15:54:35,627 INFO  L256         TraceCheckSpWp]: Trace formula consists of 21504 conjuncts, 3 conjuncts are in the unsatisfiable core
[2025-03-16 15:54:35,697 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-16 15:54:35,917 INFO  L134       CoverageAnalysis]: Checked inductivity of 229308 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 229307 trivial. 0 not checked.
[2025-03-16 15:54:35,918 INFO  L312         TraceCheckSpWp]: Computing backward predicates...
[2025-03-16 15:54:38,695 INFO  L134       CoverageAnalysis]: Checked inductivity of 229308 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 229307 trivial. 0 not checked.
[2025-03-16 15:54:38,695 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [727914827] provided 0 perfect and 2 imperfect interpolant sequences
[2025-03-16 15:54:38,695 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2025-03-16 15:54:38,696 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7
[2025-03-16 15:54:38,696 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77394643]
[2025-03-16 15:54:38,696 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2025-03-16 15:54:38,701 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2025-03-16 15:54:38,702 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-16 15:54:38,702 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2025-03-16 15:54:38,702 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2025-03-16 15:54:38,703 INFO  L87              Difference]: Start difference. First operand 189 states and 277 transitions. Second operand  has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 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)
[2025-03-16 15:54:39,683 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-16 15:54:39,683 INFO  L93              Difference]: Finished difference Result 287 states and 435 transitions.
[2025-03-16 15:54:39,683 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-03-16 15:54:39,684 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 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 2343
[2025-03-16 15:54:39,687 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-16 15:54:39,693 INFO  L225             Difference]: With dead ends: 287
[2025-03-16 15:54:39,696 INFO  L226             Difference]: Without dead ends: 225
[2025-03-16 15:54:39,697 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 4688 GetRequests, 4683 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2025-03-16 15:54:39,697 INFO  L435           NwaCegarLoop]: 274 mSDtfsCounter, 29 mSDsluCounter, 1059 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 1333 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2025-03-16 15:54:39,698 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 1333 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2025-03-16 15:54:39,698 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 225 states.
[2025-03-16 15:54:39,718 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 225.
[2025-03-16 15:54:39,719 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 225 states, 134 states have (on average 1.2462686567164178) internal successors, (167), 135 states have internal predecessors, (167), 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)
[2025-03-16 15:54:39,721 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 334 transitions.
[2025-03-16 15:54:39,721 INFO  L78                 Accepts]: Start accepts. Automaton has 225 states and 334 transitions. Word has length 2343
[2025-03-16 15:54:39,724 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-16 15:54:39,724 INFO  L471      AbstractCegarLoop]: Abstraction has 225 states and 334 transitions.
[2025-03-16 15:54:39,724 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 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)
[2025-03-16 15:54:39,724 INFO  L276                IsEmpty]: Start isEmpty. Operand 225 states and 334 transitions.
[2025-03-16 15:54:39,803 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4525
[2025-03-16 15:54:39,804 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 15:54:39,805 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]
[2025-03-16 15:54:39,846 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2025-03-16 15:54:40,005 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
[2025-03-16 15:54:40,006 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 15:54:40,006 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 15:54:40,007 INFO  L85        PathProgramCache]: Analyzing trace with hash -1306143311, now seen corresponding path program 2 times
[2025-03-16 15:54:40,007 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 15:54:40,007 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961005942]
[2025-03-16 15:54:40,007 INFO  L95    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2025-03-16 15:54:40,007 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 15:54:41,805 INFO  L108    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 4524 statements into 2 equivalence classes.
[2025-03-16 15:54:42,519 INFO  L111    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 4524 of 4524 statements.
[2025-03-16 15:54:42,519 INFO  L114    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2025-03-16 15:54:42,519 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 15:54:50,753 INFO  L134       CoverageAnalysis]: Checked inductivity of 832251 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 832175 trivial. 0 not checked.
[2025-03-16 15:54:50,753 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-16 15:54:50,753 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961005942]
[2025-03-16 15:54:50,753 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961005942] provided 0 perfect and 1 imperfect interpolant sequences
[2025-03-16 15:54:50,753 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [679310203]
[2025-03-16 15:54:50,754 INFO  L95    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2025-03-16 15:54:50,754 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-03-16 15:54:50,754 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-16 15:54:50,755 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)
[2025-03-16 15:54:50,757 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2025-03-16 15:54:54,031 INFO  L108    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 4524 statements into 2 equivalence classes.
[2025-03-16 15:55:14,967 INFO  L111    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 4524 of 4524 statements.
[2025-03-16 15:55:14,968 INFO  L114    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2025-03-16 15:55:14,968 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 15:55:15,182 INFO  L256         TraceCheckSpWp]: Trace formula consists of 41172 conjuncts, 6 conjuncts are in the unsatisfiable core
[2025-03-16 15:55:15,272 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-16 15:55:15,489 INFO  L134       CoverageAnalysis]: Checked inductivity of 832251 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 832175 trivial. 0 not checked.
[2025-03-16 15:55:15,489 INFO  L312         TraceCheckSpWp]: Computing backward predicates...
[2025-03-16 15:55:20,307 INFO  L134       CoverageAnalysis]: Checked inductivity of 832251 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 832175 trivial. 0 not checked.
[2025-03-16 15:55:20,307 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [679310203] provided 0 perfect and 2 imperfect interpolant sequences
[2025-03-16 15:55:20,307 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2025-03-16 15:55:20,308 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13
[2025-03-16 15:55:20,308 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703753079]
[2025-03-16 15:55:20,308 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2025-03-16 15:55:20,312 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2025-03-16 15:55:20,313 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-16 15:55:20,313 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2025-03-16 15:55:20,313 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156
[2025-03-16 15:55:20,314 INFO  L87              Difference]: Start difference. First operand 225 states and 334 transitions. Second operand  has 13 states, 13 states have (on average 10.76923076923077) internal successors, (140), 13 states have internal predecessors, (140), 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)
[2025-03-16 15:55:21,699 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-16 15:55:21,700 INFO  L93              Difference]: Finished difference Result 359 states and 552 transitions.
[2025-03-16 15:55:21,700 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2025-03-16 15:55:21,700 INFO  L78                 Accepts]: Start accepts. Automaton has  has 13 states, 13 states have (on average 10.76923076923077) internal successors, (140), 13 states have internal predecessors, (140), 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 4524
[2025-03-16 15:55:21,706 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-16 15:55:21,710 INFO  L225             Difference]: With dead ends: 359
[2025-03-16 15:55:21,712 INFO  L226             Difference]: Without dead ends: 297
[2025-03-16 15:55:21,713 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 9053 GetRequests, 9042 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156
[2025-03-16 15:55:21,713 INFO  L435           NwaCegarLoop]: 274 mSDtfsCounter, 65 mSDsluCounter, 1371 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 1645 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time
[2025-03-16 15:55:21,714 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 1645 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time]
[2025-03-16 15:55:21,715 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 297 states.
[2025-03-16 15:55:21,729 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 297.
[2025-03-16 15:55:21,729 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 297 states, 182 states have (on average 1.2802197802197801) internal successors, (233), 183 states have internal predecessors, (233), 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)
[2025-03-16 15:55:21,732 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 448 transitions.
[2025-03-16 15:55:21,732 INFO  L78                 Accepts]: Start accepts. Automaton has 297 states and 448 transitions. Word has length 4524
[2025-03-16 15:55:21,736 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-16 15:55:21,736 INFO  L471      AbstractCegarLoop]: Abstraction has 297 states and 448 transitions.
[2025-03-16 15:55:21,736 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 13 states, 13 states have (on average 10.76923076923077) internal successors, (140), 13 states have internal predecessors, (140), 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)
[2025-03-16 15:55:21,737 INFO  L276                IsEmpty]: Start isEmpty. Operand 297 states and 448 transitions.
[2025-03-16 15:55:22,118 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 8887
[2025-03-16 15:55:22,119 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 15:55:22,120 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]
[2025-03-16 15:55:22,211 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2025-03-16 15:55:22,321 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
[2025-03-16 15:55:22,321 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 15:55:22,322 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 15:55:22,323 INFO  L85        PathProgramCache]: Analyzing trace with hash 1224075537, now seen corresponding path program 3 times
[2025-03-16 15:55:22,323 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 15:55:22,323 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714898756]
[2025-03-16 15:55:22,323 INFO  L95    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2025-03-16 15:55:22,323 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 15:55:25,589 INFO  L108    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 8886 statements into 207 equivalence classes.