./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/recursified_loop-crafted/recursified_simple_array_index_value_4.i --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/recursified_loop-crafted/recursified_simple_array_index_value_4.i -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 30b7823755366f973ac95243d129f8492129fd0a43fc3ddfb545e22ce84d0c90
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-8fc3dc6-m
[2025-03-16 18:55:54,509 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-03-16 18:55:54,558 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2025-03-16 18:55:54,562 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-03-16 18:55:54,563 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-03-16 18:55:54,580 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-03-16 18:55:54,582 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-03-16 18:55:54,582 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-03-16 18:55:54,583 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2025-03-16 18:55:54,583 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2025-03-16 18:55:54,583 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-03-16 18:55:54,584 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-03-16 18:55:54,584 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-03-16 18:55:54,584 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-03-16 18:55:54,584 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-03-16 18:55:54,584 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2025-03-16 18:55:54,585 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2025-03-16 18:55:54,585 INFO  L153        SettingsManager]:  * sizeof long=4
[2025-03-16 18:55:54,585 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2025-03-16 18:55:54,585 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2025-03-16 18:55:54,585 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2025-03-16 18:55:54,585 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2025-03-16 18:55:54,585 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2025-03-16 18:55:54,585 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2025-03-16 18:55:54,585 INFO  L153        SettingsManager]:  * sizeof long double=12
[2025-03-16 18:55:54,585 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2025-03-16 18:55:54,585 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2025-03-16 18:55:54,586 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2025-03-16 18:55:54,586 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2025-03-16 18:55:54,586 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-03-16 18:55:54,586 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2025-03-16 18:55:54,586 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-03-16 18:55:54,586 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-03-16 18:55:54,586 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-03-16 18:55:54,586 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-03-16 18:55:54,587 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2025-03-16 18:55:54,587 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2025-03-16 18:55:54,587 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-03-16 18:55:54,587 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-03-16 18:55:54,587 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2025-03-16 18:55:54,587 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-03-16 18:55:54,587 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2025-03-16 18:55:54,587 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-03-16 18:55:54,587 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 -> 30b7823755366f973ac95243d129f8492129fd0a43fc3ddfb545e22ce84d0c90
[2025-03-16 18:55:54,790 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-03-16 18:55:54,795 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-03-16 18:55:54,797 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-03-16 18:55:54,797 INFO  L270        PluginConnector]: Initializing CDTParser...
[2025-03-16 18:55:54,798 INFO  L274        PluginConnector]: CDTParser initialized
[2025-03-16 18:55:54,798 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursified_loop-crafted/recursified_simple_array_index_value_4.i
[2025-03-16 18:55:55,919 INFO  L533              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29451d302/fee2490f4cb74bbc9f3224d0470e2331/FLAG867f4806f
[2025-03-16 18:55:56,132 INFO  L384              CDTParser]: Found 1 translation units.
[2025-03-16 18:55:56,133 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursified_loop-crafted/recursified_simple_array_index_value_4.i
[2025-03-16 18:55:56,154 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29451d302/fee2490f4cb74bbc9f3224d0470e2331/FLAG867f4806f
[2025-03-16 18:55:56,497 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29451d302/fee2490f4cb74bbc9f3224d0470e2331
[2025-03-16 18:55:56,498 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-03-16 18:55:56,499 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2025-03-16 18:55:56,500 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2025-03-16 18:55:56,500 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2025-03-16 18:55:56,502 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2025-03-16 18:55:56,503 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 06:55:56" (1/1) ...
[2025-03-16 18:55:56,503 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b5cd198 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 06:55:56, skipping insertion in model container
[2025-03-16 18:55:56,503 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 06:55:56" (1/1) ...
[2025-03-16 18:55:56,516 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2025-03-16 18:55:56,601 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/recursified_loop-crafted/recursified_simple_array_index_value_4.i[1803,1816]
[2025-03-16 18:55:56,620 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-03-16 18:55:56,627 INFO  L200         MainTranslator]: Completed pre-run
[2025-03-16 18:55:56,634 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/recursified_loop-crafted/recursified_simple_array_index_value_4.i[1803,1816]
[2025-03-16 18:55:56,644 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-03-16 18:55:56,655 INFO  L204         MainTranslator]: Completed translation
[2025-03-16 18:55:56,655 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 06:55:56 WrapperNode
[2025-03-16 18:55:56,655 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2025-03-16 18:55:56,656 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2025-03-16 18:55:56,656 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2025-03-16 18:55:56,656 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2025-03-16 18:55:56,661 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 06:55:56" (1/1) ...
[2025-03-16 18:55:56,667 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 06:55:56" (1/1) ...
[2025-03-16 18:55:56,677 INFO  L138                Inliner]: procedures = 20, calls = 62, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 45
[2025-03-16 18:55:56,677 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2025-03-16 18:55:56,678 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-03-16 18:55:56,678 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-03-16 18:55:56,678 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-03-16 18:55:56,683 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 06:55:56" (1/1) ...
[2025-03-16 18:55:56,683 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 06:55:56" (1/1) ...
[2025-03-16 18:55:56,684 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 06:55:56" (1/1) ...
[2025-03-16 18:55:56,693 INFO  L175           MemorySlicer]: Split 37 memory accesses to 6 slices as follows [2, 3, 5, 11, 11, 5]. 30 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [2, 1, 1, 0, 0, 0]. The 9 writes are split as follows [0, 1, 1, 3, 3, 1].
[2025-03-16 18:55:56,693 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 06:55:56" (1/1) ...
[2025-03-16 18:55:56,693 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 06:55:56" (1/1) ...
[2025-03-16 18:55:56,699 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 06:55:56" (1/1) ...
[2025-03-16 18:55:56,703 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 06:55:56" (1/1) ...
[2025-03-16 18:55:56,704 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 06:55:56" (1/1) ...
[2025-03-16 18:55:56,704 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 06:55:56" (1/1) ...
[2025-03-16 18:55:56,705 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-03-16 18:55:56,706 INFO  L112        PluginConnector]: ------------------------IcfgBuilder----------------------------
[2025-03-16 18:55:56,706 INFO  L270        PluginConnector]: Initializing IcfgBuilder...
[2025-03-16 18:55:56,706 INFO  L274        PluginConnector]: IcfgBuilder initialized
[2025-03-16 18:55:56,710 INFO  L184        PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 06:55:56" (1/1) ...
[2025-03-16 18:55:56,713 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-03-16 18:55:56,722 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-16 18:55:56,731 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 18:55:56,733 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 18:55:56,748 INFO  L130     BoogieDeclarations]: Found specification of procedure func_to_recursive_line_40_to_41_0
[2025-03-16 18:55:56,748 INFO  L138     BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_40_to_41_0
[2025-03-16 18:55:56,748 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2025-03-16 18:55:56,748 INFO  L130     BoogieDeclarations]: Found specification of procedure func_to_recursive_line_49_to_54_0
[2025-03-16 18:55:56,748 INFO  L138     BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_49_to_54_0
[2025-03-16 18:55:56,748 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2025-03-16 18:55:56,748 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2025-03-16 18:55:56,748 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2025-03-16 18:55:56,748 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#1
[2025-03-16 18:55:56,748 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#2
[2025-03-16 18:55:56,748 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#3
[2025-03-16 18:55:56,748 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#4
[2025-03-16 18:55:56,748 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#5
[2025-03-16 18:55:56,748 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2025-03-16 18:55:56,749 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#0
[2025-03-16 18:55:56,749 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#1
[2025-03-16 18:55:56,749 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#2
[2025-03-16 18:55:56,749 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#3
[2025-03-16 18:55:56,749 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#4
[2025-03-16 18:55:56,749 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#5
[2025-03-16 18:55:56,749 INFO  L130     BoogieDeclarations]: Found specification of procedure func_to_recursive_line_58_to_61_0
[2025-03-16 18:55:56,749 INFO  L138     BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_58_to_61_0
[2025-03-16 18:55:56,749 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2025-03-16 18:55:56,749 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2025-03-16 18:55:56,749 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#0
[2025-03-16 18:55:56,749 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#1
[2025-03-16 18:55:56,749 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#2
[2025-03-16 18:55:56,749 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#3
[2025-03-16 18:55:56,749 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#4
[2025-03-16 18:55:56,749 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#5
[2025-03-16 18:55:56,749 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2025-03-16 18:55:56,749 INFO  L138     BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2025-03-16 18:55:56,749 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2025-03-16 18:55:56,818 INFO  L256             CfgBuilder]: Building ICFG
[2025-03-16 18:55:56,820 INFO  L286             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-03-16 18:55:57,026 INFO  L?                        ?]: Removed 12 outVars from TransFormulas that were not future-live.
[2025-03-16 18:55:57,026 INFO  L307             CfgBuilder]: Performing block encoding
[2025-03-16 18:55:57,035 INFO  L331             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2025-03-16 18:55:57,035 INFO  L336             CfgBuilder]: Removed 0 assume(true) statements.
[2025-03-16 18:55:57,035 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 06:55:57 BoogieIcfgContainer
[2025-03-16 18:55:57,035 INFO  L131        PluginConnector]: ------------------------ END IcfgBuilder----------------------------
[2025-03-16 18:55:57,037 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-03-16 18:55:57,037 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-03-16 18:55:57,040 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-03-16 18:55:57,041 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.03 06:55:56" (1/3) ...
[2025-03-16 18:55:57,041 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d2c50ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 06:55:57, skipping insertion in model container
[2025-03-16 18:55:57,041 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 06:55:56" (2/3) ...
[2025-03-16 18:55:57,041 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d2c50ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 06:55:57, skipping insertion in model container
[2025-03-16 18:55:57,042 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 06:55:57" (3/3) ...
[2025-03-16 18:55:57,043 INFO  L128   eAbstractionObserver]: Analyzing ICFG recursified_simple_array_index_value_4.i
[2025-03-16 18:55:57,053 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-03-16 18:55:57,055 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG recursified_simple_array_index_value_4.i that has 6 procedures, 46 locations, 1 initial locations, 0 loop locations, and 1 error locations.
[2025-03-16 18:55:57,094 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-03-16 18:55:57,105 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;@10e9d0b1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-03-16 18:55:57,105 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-03-16 18:55:57,108 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 46 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 33 states have internal predecessors, (36), 11 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11)
[2025-03-16 18:55:57,112 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2025-03-16 18:55:57,112 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 18:55:57,113 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-16 18:55:57,113 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 18:55:57,116 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 18:55:57,116 INFO  L85        PathProgramCache]: Analyzing trace with hash 768999593, now seen corresponding path program 1 times
[2025-03-16 18:55:57,121 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 18:55:57,123 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97508224]
[2025-03-16 18:55:57,124 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 18:55:57,124 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 18:55:57,188 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes.
[2025-03-16 18:55:57,211 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements.
[2025-03-16 18:55:57,214 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 18:55:57,214 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 18:55:57,281 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2025-03-16 18:55:57,281 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-16 18:55:57,282 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97508224]
[2025-03-16 18:55:57,282 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97508224] provided 0 perfect and 1 imperfect interpolant sequences
[2025-03-16 18:55:57,282 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [34073376]
[2025-03-16 18:55:57,283 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 18:55:57,283 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-03-16 18:55:57,283 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-16 18:55:57,285 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 18:55:57,286 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 18:55:57,346 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes.
[2025-03-16 18:55:57,380 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements.
[2025-03-16 18:55:57,380 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 18:55:57,380 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 18:55:57,383 INFO  L256         TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 1 conjuncts are in the unsatisfiable core
[2025-03-16 18:55:57,386 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-16 18:55:57,396 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2025-03-16 18:55:57,397 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2025-03-16 18:55:57,397 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [34073376] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-16 18:55:57,397 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2025-03-16 18:55:57,398 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2025-03-16 18:55:57,399 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961196053]
[2025-03-16 18:55:57,400 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-16 18:55:57,403 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2025-03-16 18:55:57,403 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-16 18:55:57,415 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2025-03-16 18:55:57,416 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2025-03-16 18:55:57,417 INFO  L87              Difference]: Start difference. First operand  has 46 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 33 states have internal predecessors, (36), 11 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand  has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2025-03-16 18:55:57,435 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-16 18:55:57,435 INFO  L93              Difference]: Finished difference Result 83 states and 113 transitions.
[2025-03-16 18:55:57,436 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2025-03-16 18:55:57,438 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 27
[2025-03-16 18:55:57,438 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-16 18:55:57,442 INFO  L225             Difference]: With dead ends: 83
[2025-03-16 18:55:57,442 INFO  L226             Difference]: Without dead ends: 41
[2025-03-16 18:55:57,444 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2025-03-16 18:55:57,446 INFO  L435           NwaCegarLoop]: 56 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-03-16 18:55:57,447 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-03-16 18:55:57,455 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 41 states.
[2025-03-16 18:55:57,464 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41.
[2025-03-16 18:55:57,466 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 41 states, 25 states have (on average 1.16) internal successors, (29), 28 states have internal predecessors, (29), 11 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9)
[2025-03-16 18:55:57,469 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions.
[2025-03-16 18:55:57,470 INFO  L78                 Accepts]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 27
[2025-03-16 18:55:57,471 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-16 18:55:57,471 INFO  L471      AbstractCegarLoop]: Abstraction has 41 states and 49 transitions.
[2025-03-16 18:55:57,471 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2025-03-16 18:55:57,471 INFO  L276                IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions.
[2025-03-16 18:55:57,472 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2025-03-16 18:55:57,472 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 18:55:57,472 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-16 18:55:57,479 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2025-03-16 18:55:57,673 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2025-03-16 18:55:57,673 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 18:55:57,674 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 18:55:57,674 INFO  L85        PathProgramCache]: Analyzing trace with hash -98990041, now seen corresponding path program 1 times
[2025-03-16 18:55:57,674 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 18:55:57,674 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46043977]
[2025-03-16 18:55:57,674 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 18:55:57,674 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 18:55:57,698 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes.
[2025-03-16 18:55:57,723 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements.
[2025-03-16 18:55:57,723 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 18:55:57,723 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 18:55:58,026 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2025-03-16 18:55:58,026 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-16 18:55:58,026 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46043977]
[2025-03-16 18:55:58,026 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46043977] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-16 18:55:58,026 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-16 18:55:58,026 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-03-16 18:55:58,026 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127078912]
[2025-03-16 18:55:58,026 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-16 18:55:58,027 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-03-16 18:55:58,027 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-16 18:55:58,027 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-03-16 18:55:58,027 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-03-16 18:55:58,028 INFO  L87              Difference]: Start difference. First operand 41 states and 49 transitions. Second operand  has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3)
[2025-03-16 18:55:58,207 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-16 18:55:58,208 INFO  L93              Difference]: Finished difference Result 77 states and 92 transitions.
[2025-03-16 18:55:58,208 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-03-16 18:55:58,209 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 27
[2025-03-16 18:55:58,209 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-16 18:55:58,211 INFO  L225             Difference]: With dead ends: 77
[2025-03-16 18:55:58,212 INFO  L226             Difference]: Without dead ends: 43
[2025-03-16 18:55:58,213 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2025-03-16 18:55:58,213 INFO  L435           NwaCegarLoop]: 17 mSDtfsCounter, 27 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2025-03-16 18:55:58,213 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 50 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-03-16 18:55:58,214 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 43 states.
[2025-03-16 18:55:58,219 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43.
[2025-03-16 18:55:58,222 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 43 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 29 states have internal predecessors, (30), 11 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10)
[2025-03-16 18:55:58,223 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 51 transitions.
[2025-03-16 18:55:58,223 INFO  L78                 Accepts]: Start accepts. Automaton has 43 states and 51 transitions. Word has length 27
[2025-03-16 18:55:58,223 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-16 18:55:58,223 INFO  L471      AbstractCegarLoop]: Abstraction has 43 states and 51 transitions.
[2025-03-16 18:55:58,224 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3)
[2025-03-16 18:55:58,224 INFO  L276                IsEmpty]: Start isEmpty. Operand 43 states and 51 transitions.
[2025-03-16 18:55:58,224 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 33
[2025-03-16 18:55:58,224 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 18:55:58,224 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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 18:55:58,224 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-03-16 18:55:58,225 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 18:55:58,225 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 18:55:58,225 INFO  L85        PathProgramCache]: Analyzing trace with hash 1711285668, now seen corresponding path program 1 times
[2025-03-16 18:55:58,225 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 18:55:58,225 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989982805]
[2025-03-16 18:55:58,225 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 18:55:58,225 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 18:55:58,235 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes.
[2025-03-16 18:55:58,251 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements.
[2025-03-16 18:55:58,252 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 18:55:58,252 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 18:55:58,691 INFO  L134       CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2025-03-16 18:55:58,691 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-16 18:55:58,692 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989982805]
[2025-03-16 18:55:58,692 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989982805] provided 0 perfect and 1 imperfect interpolant sequences
[2025-03-16 18:55:58,692 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1541439320]
[2025-03-16 18:55:58,692 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 18:55:58,692 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-03-16 18:55:58,692 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-16 18:55:58,694 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 18:55:58,695 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 18:55:58,742 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes.
[2025-03-16 18:55:58,796 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements.
[2025-03-16 18:55:58,796 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 18:55:58,796 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 18:55:58,798 INFO  L256         TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 29 conjuncts are in the unsatisfiable core
[2025-03-16 18:55:58,800 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-16 18:55:58,956 INFO  L134       CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2025-03-16 18:55:58,956 INFO  L312         TraceCheckSpWp]: Computing backward predicates...
[2025-03-16 18:55:59,299 INFO  L134       CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2025-03-16 18:55:59,299 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1541439320] provided 0 perfect and 2 imperfect interpolant sequences
[2025-03-16 18:55:59,299 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2025-03-16 18:55:59,299 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 10] total 22
[2025-03-16 18:55:59,299 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046656168]
[2025-03-16 18:55:59,299 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2025-03-16 18:55:59,300 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 22 states
[2025-03-16 18:55:59,300 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-16 18:55:59,300 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants.
[2025-03-16 18:55:59,300 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=383, Unknown=0, NotChecked=0, Total=462
[2025-03-16 18:55:59,301 INFO  L87              Difference]: Start difference. First operand 43 states and 51 transitions. Second operand  has 22 states, 17 states have (on average 2.0588235294117645) internal successors, (35), 19 states have internal predecessors, (35), 6 states have call successors, (11), 5 states have call predecessors, (11), 8 states have return successors, (10), 4 states have call predecessors, (10), 6 states have call successors, (10)
[2025-03-16 18:55:59,716 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-16 18:55:59,717 INFO  L93              Difference]: Finished difference Result 81 states and 97 transitions.
[2025-03-16 18:55:59,717 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2025-03-16 18:55:59,717 INFO  L78                 Accepts]: Start accepts. Automaton has  has 22 states, 17 states have (on average 2.0588235294117645) internal successors, (35), 19 states have internal predecessors, (35), 6 states have call successors, (11), 5 states have call predecessors, (11), 8 states have return successors, (10), 4 states have call predecessors, (10), 6 states have call successors, (10) Word has length 32
[2025-03-16 18:55:59,717 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-16 18:55:59,718 INFO  L225             Difference]: With dead ends: 81
[2025-03-16 18:55:59,719 INFO  L226             Difference]: Without dead ends: 47
[2025-03-16 18:55:59,720 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=531, Unknown=0, NotChecked=0, Total=650
[2025-03-16 18:55:59,720 INFO  L435           NwaCegarLoop]: 18 mSDtfsCounter, 48 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2025-03-16 18:55:59,720 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 119 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2025-03-16 18:55:59,721 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 47 states.
[2025-03-16 18:55:59,724 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47.
[2025-03-16 18:55:59,725 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 47 states, 28 states have (on average 1.1428571428571428) internal successors, (32), 31 states have internal predecessors, (32), 11 states have call successors, (11), 5 states have call predecessors, (11), 7 states have return successors, (12), 11 states have call predecessors, (12), 9 states have call successors, (12)
[2025-03-16 18:55:59,725 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 55 transitions.
[2025-03-16 18:55:59,726 INFO  L78                 Accepts]: Start accepts. Automaton has 47 states and 55 transitions. Word has length 32
[2025-03-16 18:55:59,726 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-16 18:55:59,726 INFO  L471      AbstractCegarLoop]: Abstraction has 47 states and 55 transitions.
[2025-03-16 18:55:59,726 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 22 states, 17 states have (on average 2.0588235294117645) internal successors, (35), 19 states have internal predecessors, (35), 6 states have call successors, (11), 5 states have call predecessors, (11), 8 states have return successors, (10), 4 states have call predecessors, (10), 6 states have call successors, (10)
[2025-03-16 18:55:59,726 INFO  L276                IsEmpty]: Start isEmpty. Operand 47 states and 55 transitions.
[2025-03-16 18:55:59,727 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 43
[2025-03-16 18:55:59,727 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 18:55:59,727 INFO  L218           NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-16 18:55:59,733 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2025-03-16 18:55:59,927 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 18:55:59,928 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 18:55:59,928 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 18:55:59,928 INFO  L85        PathProgramCache]: Analyzing trace with hash 809542764, now seen corresponding path program 2 times
[2025-03-16 18:55:59,928 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 18:55:59,929 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276833427]
[2025-03-16 18:55:59,929 INFO  L95    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2025-03-16 18:55:59,929 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 18:55:59,942 INFO  L108    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 42 statements into 2 equivalence classes.
[2025-03-16 18:55:59,972 INFO  L111    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 42 of 42 statements.
[2025-03-16 18:55:59,972 INFO  L114    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2025-03-16 18:55:59,972 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 18:56:00,699 INFO  L134       CoverageAnalysis]: Checked inductivity of 31 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2025-03-16 18:56:00,699 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-16 18:56:00,699 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276833427]
[2025-03-16 18:56:00,699 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276833427] provided 0 perfect and 1 imperfect interpolant sequences
[2025-03-16 18:56:00,699 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [418056291]
[2025-03-16 18:56:00,699 INFO  L95    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2025-03-16 18:56:00,699 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-03-16 18:56:00,700 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-16 18:56:00,702 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2025-03-16 18:56:00,704 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2025-03-16 18:56:00,754 INFO  L108    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 42 statements into 2 equivalence classes.
[2025-03-16 18:56:00,787 INFO  L111    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 42 of 42 statements.
[2025-03-16 18:56:00,788 INFO  L114    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2025-03-16 18:56:00,788 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 18:56:00,789 INFO  L256         TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 32 conjuncts are in the unsatisfiable core
[2025-03-16 18:56:00,792 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-16 18:56:00,828 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1
[2025-03-16 18:56:01,013 INFO  L134       CoverageAnalysis]: Checked inductivity of 31 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked.
[2025-03-16 18:56:01,014 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2025-03-16 18:56:01,014 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [418056291] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-16 18:56:01,014 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2025-03-16 18:56:01,014 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [13] total 23
[2025-03-16 18:56:01,014 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767787000]
[2025-03-16 18:56:01,014 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-16 18:56:01,014 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2025-03-16 18:56:01,014 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-16 18:56:01,014 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2025-03-16 18:56:01,015 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=454, Unknown=0, NotChecked=0, Total=506
[2025-03-16 18:56:01,015 INFO  L87              Difference]: Start difference. First operand 47 states and 55 transitions. Second operand  has 12 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 5 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4)
[2025-03-16 18:56:01,215 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-16 18:56:01,215 INFO  L93              Difference]: Finished difference Result 67 states and 79 transitions.
[2025-03-16 18:56:01,215 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2025-03-16 18:56:01,217 INFO  L78                 Accepts]: Start accepts. Automaton has  has 12 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 5 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 42
[2025-03-16 18:56:01,217 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-16 18:56:01,218 INFO  L225             Difference]: With dead ends: 67
[2025-03-16 18:56:01,218 INFO  L226             Difference]: Without dead ends: 65
[2025-03-16 18:56:01,218 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=71, Invalid=631, Unknown=0, NotChecked=0, Total=702
[2025-03-16 18:56:01,219 INFO  L435           NwaCegarLoop]: 36 mSDtfsCounter, 21 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2025-03-16 18:56:01,219 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 341 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-03-16 18:56:01,219 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 65 states.
[2025-03-16 18:56:01,227 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 57.
[2025-03-16 18:56:01,227 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 57 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 39 states have internal predecessors, (41), 12 states have call successors, (12), 7 states have call predecessors, (12), 9 states have return successors, (14), 11 states have call predecessors, (14), 10 states have call successors, (14)
[2025-03-16 18:56:01,227 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 67 transitions.
[2025-03-16 18:56:01,227 INFO  L78                 Accepts]: Start accepts. Automaton has 57 states and 67 transitions. Word has length 42
[2025-03-16 18:56:01,228 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-16 18:56:01,228 INFO  L471      AbstractCegarLoop]: Abstraction has 57 states and 67 transitions.
[2025-03-16 18:56:01,228 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 12 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 5 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4)
[2025-03-16 18:56:01,228 INFO  L276                IsEmpty]: Start isEmpty. Operand 57 states and 67 transitions.
[2025-03-16 18:56:01,232 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 43
[2025-03-16 18:56:01,232 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 18:56:01,232 INFO  L218           NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-16 18:56:01,238 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2025-03-16 18:56:01,436 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-03-16 18:56:01,436 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 18:56:01,436 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 18:56:01,436 INFO  L85        PathProgramCache]: Analyzing trace with hash 810466285, now seen corresponding path program 1 times
[2025-03-16 18:56:01,436 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 18:56:01,436 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708167559]
[2025-03-16 18:56:01,437 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 18:56:01,437 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 18:56:01,447 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes.
[2025-03-16 18:56:01,457 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements.
[2025-03-16 18:56:01,458 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 18:56:01,458 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 18:56:01,957 INFO  L134       CoverageAnalysis]: Checked inductivity of 31 backedges. 3 proven. 17 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2025-03-16 18:56:01,957 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-16 18:56:01,957 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708167559]
[2025-03-16 18:56:01,957 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708167559] provided 0 perfect and 1 imperfect interpolant sequences
[2025-03-16 18:56:01,957 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [711161265]
[2025-03-16 18:56:01,957 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 18:56:01,957 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-03-16 18:56:01,958 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-16 18:56:01,959 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2025-03-16 18:56:01,961 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2025-03-16 18:56:02,009 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes.
[2025-03-16 18:56:02,093 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements.
[2025-03-16 18:56:02,094 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 18:56:02,094 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 18:56:02,095 INFO  L256         TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 61 conjuncts are in the unsatisfiable core
[2025-03-16 18:56:02,098 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-16 18:56:02,290 INFO  L134       CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked.
[2025-03-16 18:56:02,290 INFO  L312         TraceCheckSpWp]: Computing backward predicates...
[2025-03-16 18:56:15,233 INFO  L134       CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2025-03-16 18:56:15,233 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [711161265] provided 0 perfect and 2 imperfect interpolant sequences
[2025-03-16 18:56:15,233 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2025-03-16 18:56:15,233 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10, 18] total 37
[2025-03-16 18:56:15,233 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198271547]
[2025-03-16 18:56:15,234 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2025-03-16 18:56:15,234 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 37 states
[2025-03-16 18:56:15,234 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-16 18:56:15,234 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants.
[2025-03-16 18:56:15,235 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=1162, Unknown=3, NotChecked=0, Total=1332
[2025-03-16 18:56:15,235 INFO  L87              Difference]: Start difference. First operand 57 states and 67 transitions. Second operand  has 37 states, 28 states have (on average 1.75) internal successors, (49), 32 states have internal predecessors, (49), 10 states have call successors, (15), 7 states have call predecessors, (15), 14 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16)
[2025-03-16 18:56:19,336 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []
[2025-03-16 18:56:23,346 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []
[2025-03-16 18:56:27,349 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []
[2025-03-16 18:56:31,356 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []
[2025-03-16 18:56:51,484 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []
[2025-03-16 18:56:55,492 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []
[2025-03-16 18:56:59,496 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []
[2025-03-16 18:57:03,503 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []
[2025-03-16 18:57:07,517 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []
[2025-03-16 18:57:11,534 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []
[2025-03-16 18:57:15,540 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []
[2025-03-16 18:57:31,593 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []
[2025-03-16 18:57:35,602 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []
[2025-03-16 18:57:39,608 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []
[2025-03-16 18:57:40,316 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-16 18:57:40,316 INFO  L93              Difference]: Finished difference Result 105 states and 125 transitions.
[2025-03-16 18:57:40,316 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2025-03-16 18:57:40,316 INFO  L78                 Accepts]: Start accepts. Automaton has  has 37 states, 28 states have (on average 1.75) internal successors, (49), 32 states have internal predecessors, (49), 10 states have call successors, (15), 7 states have call predecessors, (15), 14 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) Word has length 42
[2025-03-16 18:57:40,317 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-16 18:57:40,317 INFO  L225             Difference]: With dead ends: 105
[2025-03-16 18:57:40,317 INFO  L226             Difference]: Without dead ends: 61
[2025-03-16 18:57:40,318 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 514 ImplicationChecksByTransitivity, 40.8s TimeCoverageRelationStatistics Valid=225, Invalid=1487, Unknown=10, NotChecked=0, Total=1722
[2025-03-16 18:57:40,319 INFO  L435           NwaCegarLoop]: 20 mSDtfsCounter, 74 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 940 mSolverCounterSat, 37 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 56.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 940 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 56.8s IncrementalHoareTripleChecker+Time
[2025-03-16 18:57:40,319 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 227 Invalid, 991 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 940 Invalid, 14 Unknown, 0 Unchecked, 56.8s Time]
[2025-03-16 18:57:40,319 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 61 states.
[2025-03-16 18:57:40,327 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61.
[2025-03-16 18:57:40,328 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 61 states, 37 states have (on average 1.162162162162162) internal successors, (43), 41 states have internal predecessors, (43), 12 states have call successors, (12), 7 states have call predecessors, (12), 11 states have return successors, (16), 13 states have call predecessors, (16), 10 states have call successors, (16)
[2025-03-16 18:57:40,329 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 71 transitions.
[2025-03-16 18:57:40,331 INFO  L78                 Accepts]: Start accepts. Automaton has 61 states and 71 transitions. Word has length 42
[2025-03-16 18:57:40,331 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-16 18:57:40,331 INFO  L471      AbstractCegarLoop]: Abstraction has 61 states and 71 transitions.
[2025-03-16 18:57:40,331 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 37 states, 28 states have (on average 1.75) internal successors, (49), 32 states have internal predecessors, (49), 10 states have call successors, (15), 7 states have call predecessors, (15), 14 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16)
[2025-03-16 18:57:40,331 INFO  L276                IsEmpty]: Start isEmpty. Operand 61 states and 71 transitions.
[2025-03-16 18:57:40,332 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 53
[2025-03-16 18:57:40,332 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 18:57:40,332 INFO  L218           NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-16 18:57:40,339 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2025-03-16 18:57:40,532 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-03-16 18:57:40,533 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 18:57:40,533 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 18:57:40,533 INFO  L85        PathProgramCache]: Analyzing trace with hash 1846169269, now seen corresponding path program 2 times
[2025-03-16 18:57:40,533 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 18:57:40,533 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921982039]
[2025-03-16 18:57:40,533 INFO  L95    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2025-03-16 18:57:40,533 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 18:57:40,545 INFO  L108    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 52 statements into 2 equivalence classes.
[2025-03-16 18:57:40,561 INFO  L111    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 52 of 52 statements.
[2025-03-16 18:57:40,564 INFO  L114    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2025-03-16 18:57:40,565 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 18:57:41,437 INFO  L134       CoverageAnalysis]: Checked inductivity of 74 backedges. 8 proven. 35 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked.
[2025-03-16 18:57:41,437 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-16 18:57:41,438 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921982039]
[2025-03-16 18:57:41,438 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921982039] provided 0 perfect and 1 imperfect interpolant sequences
[2025-03-16 18:57:41,438 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1245485014]
[2025-03-16 18:57:41,438 INFO  L95    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2025-03-16 18:57:41,438 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-03-16 18:57:41,438 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-16 18:57:41,440 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2025-03-16 18:57:41,442 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2025-03-16 18:57:41,502 INFO  L108    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 52 statements into 2 equivalence classes.
[2025-03-16 18:57:41,540 INFO  L111    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 52 of 52 statements.
[2025-03-16 18:57:41,540 INFO  L114    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2025-03-16 18:57:41,540 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 18:57:41,542 INFO  L256         TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 27 conjuncts are in the unsatisfiable core
[2025-03-16 18:57:41,544 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-16 18:57:41,582 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1
[2025-03-16 18:57:41,897 INFO  L134       CoverageAnalysis]: Checked inductivity of 74 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked.
[2025-03-16 18:57:41,897 INFO  L312         TraceCheckSpWp]: Computing backward predicates...