./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/recursified_loop-crafted/recursified_simple_array_index_value_2.i --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version 798a7b37
Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursified_loop-crafted/recursified_simple_array_index_value_2.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 a00615dde165ef79502be50d436d5b7101f564051a4b91f339855b18841d9599
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-798a7b3-m
[2025-03-03 14:37:04,692 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-03-03 14:37:04,748 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2025-03-03 14:37:04,752 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-03-03 14:37:04,754 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-03-03 14:37:04,766 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-03-03 14:37:04,767 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-03-03 14:37:04,767 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-03-03 14:37:04,767 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2025-03-03 14:37:04,767 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2025-03-03 14:37:04,768 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-03-03 14:37:04,768 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-03-03 14:37:04,768 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-03-03 14:37:04,768 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-03-03 14:37:04,768 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-03-03 14:37:04,768 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2025-03-03 14:37:04,768 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2025-03-03 14:37:04,768 INFO  L153        SettingsManager]:  * sizeof long=4
[2025-03-03 14:37:04,768 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2025-03-03 14:37:04,769 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2025-03-03 14:37:04,769 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2025-03-03 14:37:04,769 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2025-03-03 14:37:04,769 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2025-03-03 14:37:04,769 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2025-03-03 14:37:04,769 INFO  L153        SettingsManager]:  * sizeof long double=12
[2025-03-03 14:37:04,769 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2025-03-03 14:37:04,769 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2025-03-03 14:37:04,769 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2025-03-03 14:37:04,769 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2025-03-03 14:37:04,769 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-03-03 14:37:04,770 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2025-03-03 14:37:04,770 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-03-03 14:37:04,770 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-03-03 14:37:04,770 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-03-03 14:37:04,770 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-03-03 14:37:04,770 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2025-03-03 14:37:04,770 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2025-03-03 14:37:04,770 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-03-03 14:37:04,770 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-03-03 14:37:04,770 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2025-03-03 14:37:04,770 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-03-03 14:37:04,770 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2025-03-03 14:37:04,770 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-03-03 14:37:04,771 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 -> a00615dde165ef79502be50d436d5b7101f564051a4b91f339855b18841d9599
[2025-03-03 14:37:04,965 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-03-03 14:37:04,971 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-03-03 14:37:04,972 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-03-03 14:37:04,973 INFO  L270        PluginConnector]: Initializing CDTParser...
[2025-03-03 14:37:04,973 INFO  L274        PluginConnector]: CDTParser initialized
[2025-03-03 14:37:04,974 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursified_loop-crafted/recursified_simple_array_index_value_2.i
[2025-03-03 14:37:06,056 INFO  L533              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44a9f718f/84f44665f2484403915e16894b7770b9/FLAGbf5f14674
[2025-03-03 14:37:06,305 INFO  L384              CDTParser]: Found 1 translation units.
[2025-03-03 14:37:06,306 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursified_loop-crafted/recursified_simple_array_index_value_2.i
[2025-03-03 14:37:06,314 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44a9f718f/84f44665f2484403915e16894b7770b9/FLAGbf5f14674
[2025-03-03 14:37:06,619 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44a9f718f/84f44665f2484403915e16894b7770b9
[2025-03-03 14:37:06,621 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-03-03 14:37:06,622 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2025-03-03 14:37:06,623 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2025-03-03 14:37:06,623 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2025-03-03 14:37:06,625 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2025-03-03 14:37:06,626 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 02:37:06" (1/1) ...
[2025-03-03 14:37:06,626 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e39cb80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:37:06, skipping insertion in model container
[2025-03-03 14:37:06,627 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 02:37:06" (1/1) ...
[2025-03-03 14:37:06,636 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2025-03-03 14:37:06,731 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_2.i[1800,1813]
[2025-03-03 14:37:06,739 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-03-03 14:37:06,746 INFO  L200         MainTranslator]: Completed pre-run
[2025-03-03 14:37:06,752 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_2.i[1800,1813]
[2025-03-03 14:37:06,759 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-03-03 14:37:06,770 INFO  L204         MainTranslator]: Completed translation
[2025-03-03 14:37:06,770 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:37:06 WrapperNode
[2025-03-03 14:37:06,770 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2025-03-03 14:37:06,771 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2025-03-03 14:37:06,771 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2025-03-03 14:37:06,771 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2025-03-03 14:37:06,775 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:37:06" (1/1) ...
[2025-03-03 14:37:06,779 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:37:06" (1/1) ...
[2025-03-03 14:37:06,794 INFO  L138                Inliner]: procedures = 19, calls = 30, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 68
[2025-03-03 14:37:06,794 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2025-03-03 14:37:06,795 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-03-03 14:37:06,795 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-03-03 14:37:06,795 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-03-03 14:37:06,799 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:37:06" (1/1) ...
[2025-03-03 14:37:06,799 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:37:06" (1/1) ...
[2025-03-03 14:37:06,800 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:37:06" (1/1) ...
[2025-03-03 14:37:06,807 INFO  L175           MemorySlicer]: Split 16 memory accesses to 3 slices as follows [2, 12, 2]. 75 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 5 writes are split as follows [0, 4, 1].
[2025-03-03 14:37:06,808 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:37:06" (1/1) ...
[2025-03-03 14:37:06,808 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:37:06" (1/1) ...
[2025-03-03 14:37:06,811 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:37:06" (1/1) ...
[2025-03-03 14:37:06,811 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:37:06" (1/1) ...
[2025-03-03 14:37:06,812 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:37:06" (1/1) ...
[2025-03-03 14:37:06,812 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:37:06" (1/1) ...
[2025-03-03 14:37:06,813 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-03-03 14:37:06,814 INFO  L112        PluginConnector]: ------------------------IcfgBuilder----------------------------
[2025-03-03 14:37:06,814 INFO  L270        PluginConnector]: Initializing IcfgBuilder...
[2025-03-03 14:37:06,814 INFO  L274        PluginConnector]: IcfgBuilder initialized
[2025-03-03 14:37:06,814 INFO  L184        PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:37:06" (1/1) ...
[2025-03-03 14:37:06,818 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-03-03 14:37:06,826 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-03 14:37:06,837 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2025-03-03 14:37:06,838 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2025-03-03 14:37:06,853 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2025-03-03 14:37:06,853 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2025-03-03 14:37:06,853 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#1
[2025-03-03 14:37:06,853 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#2
[2025-03-03 14:37:06,853 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2025-03-03 14:37:06,853 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#0
[2025-03-03 14:37:06,853 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#1
[2025-03-03 14:37:06,853 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#2
[2025-03-03 14:37:06,853 INFO  L130     BoogieDeclarations]: Found specification of procedure func_to_recursive_line_38_to_41_0
[2025-03-03 14:37:06,853 INFO  L138     BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_38_to_41_0
[2025-03-03 14:37:06,853 INFO  L130     BoogieDeclarations]: Found specification of procedure func_to_recursive_line_44_to_45_0
[2025-03-03 14:37:06,853 INFO  L138     BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_44_to_45_0
[2025-03-03 14:37:06,853 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2025-03-03 14:37:06,853 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2025-03-03 14:37:06,853 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#0
[2025-03-03 14:37:06,853 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#1
[2025-03-03 14:37:06,853 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#2
[2025-03-03 14:37:06,853 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2025-03-03 14:37:06,906 INFO  L256             CfgBuilder]: Building ICFG
[2025-03-03 14:37:06,907 INFO  L286             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-03-03 14:37:07,004 INFO  L?                        ?]: Removed 11 outVars from TransFormulas that were not future-live.
[2025-03-03 14:37:07,005 INFO  L307             CfgBuilder]: Performing block encoding
[2025-03-03 14:37:07,012 INFO  L331             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2025-03-03 14:37:07,012 INFO  L336             CfgBuilder]: Removed 0 assume(true) statements.
[2025-03-03 14:37:07,013 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 02:37:07 BoogieIcfgContainer
[2025-03-03 14:37:07,013 INFO  L131        PluginConnector]: ------------------------ END IcfgBuilder----------------------------
[2025-03-03 14:37:07,015 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-03-03 14:37:07,015 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-03-03 14:37:07,019 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-03-03 14:37:07,019 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 02:37:06" (1/3) ...
[2025-03-03 14:37:07,020 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30a3709d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 02:37:07, skipping insertion in model container
[2025-03-03 14:37:07,020 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:37:06" (2/3) ...
[2025-03-03 14:37:07,020 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30a3709d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 02:37:07, skipping insertion in model container
[2025-03-03 14:37:07,020 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 02:37:07" (3/3) ...
[2025-03-03 14:37:07,021 INFO  L128   eAbstractionObserver]: Analyzing ICFG recursified_simple_array_index_value_2.i
[2025-03-03 14:37:07,033 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-03-03 14:37:07,034 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG recursified_simple_array_index_value_2.i that has 3 procedures, 25 locations, 1 initial locations, 0 loop locations, and 1 error locations.
[2025-03-03 14:37:07,072 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-03-03 14:37:07,080 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;@67330278, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-03-03 14:37:07,080 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-03-03 14:37:07,083 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 25 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 20 states have internal predecessors, (22), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2025-03-03 14:37:07,086 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2025-03-03 14:37:07,086 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 14:37:07,087 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-03 14:37:07,087 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting func_to_recursive_line_44_to_45_0Err0ASSERT_VIOLATIONERROR_FUNCTION === [func_to_recursive_line_44_to_45_0Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 14:37:07,090 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 14:37:07,090 INFO  L85        PathProgramCache]: Analyzing trace with hash -1159836415, now seen corresponding path program 1 times
[2025-03-03 14:37:07,094 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 14:37:07,095 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078839785]
[2025-03-03 14:37:07,095 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 14:37:07,095 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 14:37:07,170 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes.
[2025-03-03 14:37:07,200 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements.
[2025-03-03 14:37:07,201 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 14:37:07,201 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 14:37:07,608 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-03 14:37:07,609 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 14:37:07,609 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078839785]
[2025-03-03 14:37:07,609 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078839785] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-03 14:37:07,610 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-03 14:37:07,610 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-03-03 14:37:07,611 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757757711]
[2025-03-03 14:37:07,612 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-03 14:37:07,615 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-03-03 14:37:07,615 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 14:37:07,629 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-03-03 14:37:07,630 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2025-03-03 14:37:07,631 INFO  L87              Difference]: Start difference. First operand  has 25 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 20 states have internal predecessors, (22), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand  has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2025-03-03 14:37:07,755 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-03 14:37:07,756 INFO  L93              Difference]: Finished difference Result 52 states and 67 transitions.
[2025-03-03 14:37:07,757 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-03-03 14:37:07,758 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13
[2025-03-03 14:37:07,758 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-03 14:37:07,763 INFO  L225             Difference]: With dead ends: 52
[2025-03-03 14:37:07,763 INFO  L226             Difference]: Without dead ends: 21
[2025-03-03 14:37:07,767 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2025-03-03 14:37:07,769 INFO  L435           NwaCegarLoop]: 18 mSDtfsCounter, 10 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2025-03-03 14:37:07,770 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 52 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-03-03 14:37:07,778 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 21 states.
[2025-03-03 14:37:07,787 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21.
[2025-03-03 14:37:07,788 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 21 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 16 states have internal predecessors, (16), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2025-03-03 14:37:07,791 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions.
[2025-03-03 14:37:07,793 INFO  L78                 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 13
[2025-03-03 14:37:07,793 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-03 14:37:07,794 INFO  L471      AbstractCegarLoop]: Abstraction has 21 states and 23 transitions.
[2025-03-03 14:37:07,794 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2025-03-03 14:37:07,794 INFO  L276                IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions.
[2025-03-03 14:37:07,796 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2025-03-03 14:37:07,796 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 14:37:07,796 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-03 14:37:07,796 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2025-03-03 14:37:07,797 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting func_to_recursive_line_44_to_45_0Err0ASSERT_VIOLATIONERROR_FUNCTION === [func_to_recursive_line_44_to_45_0Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 14:37:07,797 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 14:37:07,797 INFO  L85        PathProgramCache]: Analyzing trace with hash -858409581, now seen corresponding path program 1 times
[2025-03-03 14:37:07,797 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 14:37:07,797 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106360490]
[2025-03-03 14:37:07,797 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 14:37:07,797 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 14:37:07,810 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes.
[2025-03-03 14:37:07,833 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements.
[2025-03-03 14:37:07,834 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 14:37:07,834 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 14:37:08,266 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2025-03-03 14:37:08,267 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 14:37:08,267 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106360490]
[2025-03-03 14:37:08,267 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106360490] provided 0 perfect and 1 imperfect interpolant sequences
[2025-03-03 14:37:08,267 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1457716332]
[2025-03-03 14:37:08,267 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 14:37:08,267 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-03-03 14:37:08,267 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-03 14:37:08,269 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2025-03-03 14:37:08,271 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2025-03-03 14:37:08,310 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes.
[2025-03-03 14:37:08,339 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements.
[2025-03-03 14:37:08,339 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 14:37:08,339 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 14:37:08,341 INFO  L256         TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 27 conjuncts are in the unsatisfiable core
[2025-03-03 14:37:08,346 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-03 14:37:08,371 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 11 treesize of output 7
[2025-03-03 14:37:08,520 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2025-03-03 14:37:08,520 INFO  L312         TraceCheckSpWp]: Computing backward predicates...
[2025-03-03 14:37:08,878 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-03 14:37:08,879 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1457716332] provided 0 perfect and 2 imperfect interpolant sequences
[2025-03-03 14:37:08,879 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2025-03-03 14:37:08,879 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 10] total 22
[2025-03-03 14:37:08,879 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235802358]
[2025-03-03 14:37:08,879 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2025-03-03 14:37:08,880 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 22 states
[2025-03-03 14:37:08,880 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 14:37:08,880 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants.
[2025-03-03 14:37:08,881 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=380, Unknown=0, NotChecked=0, Total=462
[2025-03-03 14:37:08,881 INFO  L87              Difference]: Start difference. First operand 21 states and 23 transitions. Second operand  has 22 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 19 states have internal predecessors, (31), 6 states have call successors, (6), 4 states have call predecessors, (6), 6 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6)
[2025-03-03 14:37:09,098 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-03 14:37:09,098 INFO  L93              Difference]: Finished difference Result 34 states and 38 transitions.
[2025-03-03 14:37:09,098 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2025-03-03 14:37:09,099 INFO  L78                 Accepts]: Start accepts. Automaton has  has 22 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 19 states have internal predecessors, (31), 6 states have call successors, (6), 4 states have call predecessors, (6), 6 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 20
[2025-03-03 14:37:09,099 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-03 14:37:09,099 INFO  L225             Difference]: With dead ends: 34
[2025-03-03 14:37:09,099 INFO  L226             Difference]: Without dead ends: 25
[2025-03-03 14:37:09,100 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=132, Invalid=570, Unknown=0, NotChecked=0, Total=702
[2025-03-03 14:37:09,100 INFO  L435           NwaCegarLoop]: 14 mSDtfsCounter, 11 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2025-03-03 14:37:09,101 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 100 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-03-03 14:37:09,101 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25 states.
[2025-03-03 14:37:09,104 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25.
[2025-03-03 14:37:09,104 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 25 states, 16 states have (on average 1.125) internal successors, (18), 18 states have internal predecessors, (18), 4 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5)
[2025-03-03 14:37:09,104 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions.
[2025-03-03 14:37:09,104 INFO  L78                 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 20
[2025-03-03 14:37:09,105 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-03 14:37:09,105 INFO  L471      AbstractCegarLoop]: Abstraction has 25 states and 27 transitions.
[2025-03-03 14:37:09,105 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 22 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 19 states have internal predecessors, (31), 6 states have call successors, (6), 4 states have call predecessors, (6), 6 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6)
[2025-03-03 14:37:09,105 INFO  L276                IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions.
[2025-03-03 14:37:09,105 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 35
[2025-03-03 14:37:09,105 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 14:37:09,106 INFO  L218           NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-03 14:37:09,112 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2025-03-03 14:37:09,309 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-03-03 14:37:09,310 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting func_to_recursive_line_44_to_45_0Err0ASSERT_VIOLATIONERROR_FUNCTION === [func_to_recursive_line_44_to_45_0Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 14:37:09,310 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 14:37:09,310 INFO  L85        PathProgramCache]: Analyzing trace with hash -1927899875, now seen corresponding path program 2 times
[2025-03-03 14:37:09,310 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 14:37:09,310 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057428313]
[2025-03-03 14:37:09,311 INFO  L95    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2025-03-03 14:37:09,311 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 14:37:09,327 INFO  L108    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 34 statements into 2 equivalence classes.
[2025-03-03 14:37:09,345 INFO  L111    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 34 of 34 statements.
[2025-03-03 14:37:09,346 INFO  L114    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2025-03-03 14:37:09,346 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 14:37:10,149 INFO  L134       CoverageAnalysis]: Checked inductivity of 33 backedges. 8 proven. 15 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2025-03-03 14:37:10,150 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 14:37:10,150 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057428313]
[2025-03-03 14:37:10,150 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057428313] provided 0 perfect and 1 imperfect interpolant sequences
[2025-03-03 14:37:10,150 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [214773869]
[2025-03-03 14:37:10,150 INFO  L95    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2025-03-03 14:37:10,151 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-03-03 14:37:10,151 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-03 14:37:10,152 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2025-03-03 14:37:10,154 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2025-03-03 14:37:10,196 INFO  L108    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 34 statements into 2 equivalence classes.
[2025-03-03 14:37:10,225 INFO  L111    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 34 of 34 statements.
[2025-03-03 14:37:10,225 INFO  L114    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2025-03-03 14:37:10,225 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 14:37:10,228 WARN  L254         TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 135 conjuncts are in the unsatisfiable core
[2025-03-03 14:37:10,233 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-03 14:37:10,242 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 11 treesize of output 7
[2025-03-03 14:37:10,460 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 35 treesize of output 1
[2025-03-03 14:37:16,205 INFO  L349             Elim1Store]: treesize reduction 297, result has 33.1 percent of original size
[2025-03-03 14:37:16,206 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 294 treesize of output 401
[2025-03-03 14:37:16,681 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 29
[2025-03-03 14:37:16,693 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17
[2025-03-03 14:37:16,757 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 49
[2025-03-03 14:37:16,779 INFO  L349             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2025-03-03 14:37:16,779 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 53
[2025-03-03 14:37:17,139 INFO  L349             Elim1Store]: treesize reduction 29, result has 3.3 percent of original size
[2025-03-03 14:37:17,139 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 37
[2025-03-03 14:37:17,184 INFO  L349             Elim1Store]: treesize reduction 29, result has 3.3 percent of original size
[2025-03-03 14:37:17,184 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 37
[2025-03-03 14:37:17,206 INFO  L349             Elim1Store]: treesize reduction 29, result has 3.3 percent of original size
[2025-03-03 14:37:17,206 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 37
[2025-03-03 14:37:17,437 INFO  L349             Elim1Store]: treesize reduction 92, result has 1.1 percent of original size
[2025-03-03 14:37:17,437 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 82 treesize of output 42
[2025-03-03 14:37:23,202 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3
[2025-03-03 14:37:24,044 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 11 treesize of output 7
[2025-03-03 14:37:26,817 INFO  L349             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2025-03-03 14:37:26,818 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 147 treesize of output 189
[2025-03-03 14:37:32,797 INFO  L134       CoverageAnalysis]: Checked inductivity of 33 backedges. 5 proven. 25 refuted. 2 times theorem prover too weak. 1 trivial. 0 not checked.
[2025-03-03 14:37:32,797 INFO  L312         TraceCheckSpWp]: Computing backward predicates...
[2025-03-03 14:37:39,436 INFO  L173   IndexEqualityManager]: detected equality via solver
[2025-03-03 14:37:39,564 INFO  L224             Elim1Store]: Index analysis took 131 ms
[2025-03-03 14:37:40,759 INFO  L349             Elim1Store]: treesize reduction 591, result has 47.9 percent of original size
[2025-03-03 14:37:40,759 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 12 case distinctions, treesize of input 283 treesize of output 685
[2025-03-03 14:37:42,297 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 875 treesize of output 845
[2025-03-03 14:37:42,874 INFO  L349             Elim1Store]: treesize reduction 15, result has 89.8 percent of original size
[2025-03-03 14:37:42,874 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 818 treesize of output 753
[2025-03-03 14:37:44,116 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 756 treesize of output 727
[2025-03-03 14:37:44,344 INFO  L349             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2025-03-03 14:37:44,344 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 768 treesize of output 719
[2025-03-03 14:37:44,548 INFO  L349             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2025-03-03 14:37:44,548 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 618 treesize of output 565
[2025-03-03 14:37:44,594 INFO  L173   IndexEqualityManager]: detected equality via solver
[2025-03-03 14:37:44,704 INFO  L349             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2025-03-03 14:37:44,704 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 650 treesize of output 496
[2025-03-03 14:37:50,858 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [214773869] provided 0 perfect and 1 imperfect interpolant sequences
[2025-03-03 14:37:50,858 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2025-03-03 14:37:50,858 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 25] total 37
[2025-03-03 14:37:50,858 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783757059]
[2025-03-03 14:37:50,858 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2025-03-03 14:37:50,858 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 37 states
[2025-03-03 14:37:50,858 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 14:37:50,859 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants.
[2025-03-03 14:37:50,860 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=1802, Unknown=2, NotChecked=0, Total=1980
[2025-03-03 14:37:50,860 INFO  L87              Difference]: Start difference. First operand 25 states and 27 transitions. Second operand  has 37 states, 30 states have (on average 1.4666666666666666) internal successors, (44), 33 states have internal predecessors, (44), 9 states have call successors, (9), 5 states have call predecessors, (9), 8 states have return successors, (8), 8 states have call predecessors, (8), 7 states have call successors, (8)
[2025-03-03 14:38:02,326 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 [0]
[2025-03-03 14:38:05,687 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-03 14:38:05,687 INFO  L93              Difference]: Finished difference Result 43 states and 51 transitions.
[2025-03-03 14:38:05,688 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. 
[2025-03-03 14:38:05,688 INFO  L78                 Accepts]: Start accepts. Automaton has  has 37 states, 30 states have (on average 1.4666666666666666) internal successors, (44), 33 states have internal predecessors, (44), 9 states have call successors, (9), 5 states have call predecessors, (9), 8 states have return successors, (8), 8 states have call predecessors, (8), 7 states have call successors, (8) Word has length 34
[2025-03-03 14:38:05,688 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-03 14:38:05,689 INFO  L225             Difference]: With dead ends: 43
[2025-03-03 14:38:05,689 INFO  L226             Difference]: Without dead ends: 34
[2025-03-03 14:38:05,690 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 871 ImplicationChecksByTransitivity, 22.3s TimeCoverageRelationStatistics Valid=332, Invalid=3087, Unknown=3, NotChecked=0, Total=3422
[2025-03-03 14:38:05,690 INFO  L435           NwaCegarLoop]: 12 mSDtfsCounter, 28 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 18 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time
[2025-03-03 14:38:05,690 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 134 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 543 Invalid, 1 Unknown, 0 Unchecked, 8.6s Time]
[2025-03-03 14:38:05,691 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 34 states.
[2025-03-03 14:38:05,696 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32.
[2025-03-03 14:38:05,697 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 32 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 23 states have internal predecessors, (24), 5 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6)
[2025-03-03 14:38:05,698 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions.
[2025-03-03 14:38:05,699 INFO  L78                 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 34
[2025-03-03 14:38:05,699 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-03 14:38:05,699 INFO  L471      AbstractCegarLoop]: Abstraction has 32 states and 35 transitions.
[2025-03-03 14:38:05,699 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 37 states, 30 states have (on average 1.4666666666666666) internal successors, (44), 33 states have internal predecessors, (44), 9 states have call successors, (9), 5 states have call predecessors, (9), 8 states have return successors, (8), 8 states have call predecessors, (8), 7 states have call successors, (8)
[2025-03-03 14:38:05,699 INFO  L276                IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions.
[2025-03-03 14:38:05,700 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 42
[2025-03-03 14:38:05,700 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 14:38:05,700 INFO  L218           NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-03 14:38:05,706 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2025-03-03 14:38:05,900 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2
[2025-03-03 14:38:05,900 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting func_to_recursive_line_44_to_45_0Err0ASSERT_VIOLATIONERROR_FUNCTION === [func_to_recursive_line_44_to_45_0Err0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 14:38:05,901 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 14:38:05,901 INFO  L85        PathProgramCache]: Analyzing trace with hash 1783636373, now seen corresponding path program 3 times
[2025-03-03 14:38:05,901 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 14:38:05,901 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075189133]
[2025-03-03 14:38:05,901 INFO  L95    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2025-03-03 14:38:05,901 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 14:38:05,910 INFO  L108    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 41 statements into 5 equivalence classes.
[2025-03-03 14:38:05,968 INFO  L111    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) and asserted 41 of 41 statements.
[2025-03-03 14:38:05,969 INFO  L114    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s)
[2025-03-03 14:38:05,969 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 14:38:09,709 INFO  L134       CoverageAnalysis]: Checked inductivity of 58 backedges. 18 proven. 24 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked.
[2025-03-03 14:38:09,710 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 14:38:09,710 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075189133]
[2025-03-03 14:38:09,710 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075189133] provided 0 perfect and 1 imperfect interpolant sequences
[2025-03-03 14:38:09,710 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1651059307]
[2025-03-03 14:38:09,710 INFO  L95    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2025-03-03 14:38:09,710 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-03-03 14:38:09,710 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-03 14:38:09,712 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)
[2025-03-03 14:38:09,713 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2025-03-03 14:38:09,756 INFO  L108    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 41 statements into 5 equivalence classes.
[2025-03-03 14:38:10,183 INFO  L111    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) and asserted 41 of 41 statements.
[2025-03-03 14:38:10,184 INFO  L114    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s)
[2025-03-03 14:38:10,184 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 14:38:10,186 INFO  L256         TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 65 conjuncts are in the unsatisfiable core
[2025-03-03 14:38:10,188 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-03 14:38:10,202 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 11 treesize of output 7
[2025-03-03 14:38:12,917 INFO  L134       CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked.
[2025-03-03 14:38:12,918 INFO  L312         TraceCheckSpWp]: Computing backward predicates...