./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test1-1.i --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version c00e63dc
Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test1-1.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 470d7065e9fd450e98d72326ef313763cf0710ea45f0a443b018e8a49bdf7927
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-c00e63d-m
[2025-02-06 08:51:43,527 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-02-06 08:51:43,586 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2025-02-06 08:51:43,590 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-02-06 08:51:43,591 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-02-06 08:51:43,610 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-02-06 08:51:43,611 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-02-06 08:51:43,611 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-02-06 08:51:43,611 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2025-02-06 08:51:43,611 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2025-02-06 08:51:43,611 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-02-06 08:51:43,612 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-02-06 08:51:43,612 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-02-06 08:51:43,612 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-02-06 08:51:43,612 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-02-06 08:51:43,612 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2025-02-06 08:51:43,612 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2025-02-06 08:51:43,612 INFO  L153        SettingsManager]:  * sizeof long=4
[2025-02-06 08:51:43,612 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2025-02-06 08:51:43,612 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2025-02-06 08:51:43,612 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2025-02-06 08:51:43,613 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2025-02-06 08:51:43,613 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2025-02-06 08:51:43,613 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2025-02-06 08:51:43,613 INFO  L153        SettingsManager]:  * sizeof long double=12
[2025-02-06 08:51:43,613 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2025-02-06 08:51:43,613 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2025-02-06 08:51:43,613 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2025-02-06 08:51:43,613 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2025-02-06 08:51:43,613 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-02-06 08:51:43,613 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2025-02-06 08:51:43,613 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-02-06 08:51:43,614 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-02-06 08:51:43,614 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-02-06 08:51:43,614 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-02-06 08:51:43,614 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2025-02-06 08:51:43,614 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2025-02-06 08:51:43,614 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-02-06 08:51:43,614 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-02-06 08:51:43,614 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2025-02-06 08:51:43,614 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-02-06 08:51:43,614 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2025-02-06 08:51:43,614 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-02-06 08:51:43,614 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 470d7065e9fd450e98d72326ef313763cf0710ea45f0a443b018e8a49bdf7927
[2025-02-06 08:51:43,821 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-02-06 08:51:43,828 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-02-06 08:51:43,830 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-02-06 08:51:43,830 INFO  L270        PluginConnector]: Initializing CDTParser...
[2025-02-06 08:51:43,830 INFO  L274        PluginConnector]: CDTParser initialized
[2025-02-06 08:51:43,831 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test1-1.i
[2025-02-06 08:51:45,008 INFO  L533              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4a6c25c37/e3500e40213f4377ab9b0e13906366e9/FLAGe0e6019a3
[2025-02-06 08:51:45,393 INFO  L384              CDTParser]: Found 1 translation units.
[2025-02-06 08:51:45,395 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test1-1.i
[2025-02-06 08:51:45,410 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4a6c25c37/e3500e40213f4377ab9b0e13906366e9/FLAGe0e6019a3
[2025-02-06 08:51:45,597 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4a6c25c37/e3500e40213f4377ab9b0e13906366e9
[2025-02-06 08:51:45,598 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-02-06 08:51:45,599 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2025-02-06 08:51:45,600 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2025-02-06 08:51:45,600 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2025-02-06 08:51:45,603 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2025-02-06 08:51:45,604 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 08:51:45" (1/1) ...
[2025-02-06 08:51:45,604 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@335723c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:51:45, skipping insertion in model container
[2025-02-06 08:51:45,604 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 08:51:45" (1/1) ...
[2025-02-06 08:51:45,633 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2025-02-06 08:51:45,889 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test1-1.i[33021,33034]
[2025-02-06 08:51:45,957 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-02-06 08:51:45,968 INFO  L200         MainTranslator]: Completed pre-run
[2025-02-06 08:51:46,000 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test1-1.i[33021,33034]
[2025-02-06 08:51:46,046 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-02-06 08:51:46,077 INFO  L204         MainTranslator]: Completed translation
[2025-02-06 08:51:46,078 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:51:46 WrapperNode
[2025-02-06 08:51:46,078 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2025-02-06 08:51:46,079 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2025-02-06 08:51:46,080 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2025-02-06 08:51:46,080 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2025-02-06 08:51:46,084 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:51:46" (1/1) ...
[2025-02-06 08:51:46,106 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:51:46" (1/1) ...
[2025-02-06 08:51:46,146 INFO  L138                Inliner]: procedures = 176, calls = 179, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 812
[2025-02-06 08:51:46,150 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2025-02-06 08:51:46,151 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-02-06 08:51:46,151 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-02-06 08:51:46,151 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-02-06 08:51:46,158 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:51:46" (1/1) ...
[2025-02-06 08:51:46,158 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:51:46" (1/1) ...
[2025-02-06 08:51:46,167 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:51:46" (1/1) ...
[2025-02-06 08:51:46,198 INFO  L175           MemorySlicer]: Split 158 memory accesses to 2 slices as follows [2, 156]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 42 writes are split as follows [0, 42].
[2025-02-06 08:51:46,199 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:51:46" (1/1) ...
[2025-02-06 08:51:46,199 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:51:46" (1/1) ...
[2025-02-06 08:51:46,217 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:51:46" (1/1) ...
[2025-02-06 08:51:46,219 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:51:46" (1/1) ...
[2025-02-06 08:51:46,220 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:51:46" (1/1) ...
[2025-02-06 08:51:46,221 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:51:46" (1/1) ...
[2025-02-06 08:51:46,225 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-02-06 08:51:46,225 INFO  L112        PluginConnector]: ------------------------IcfgBuilder----------------------------
[2025-02-06 08:51:46,225 INFO  L270        PluginConnector]: Initializing IcfgBuilder...
[2025-02-06 08:51:46,225 INFO  L274        PluginConnector]: IcfgBuilder initialized
[2025-02-06 08:51:46,226 INFO  L184        PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:51:46" (1/1) ...
[2025-02-06 08:51:46,229 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-02-06 08:51:46,240 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2025-02-06 08:51:46,250 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2025-02-06 08:51:46,257 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2025-02-06 08:51:46,273 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#0
[2025-02-06 08:51:46,273 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#1
[2025-02-06 08:51:46,273 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2025-02-06 08:51:46,273 INFO  L138     BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2025-02-06 08:51:46,273 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#0
[2025-02-06 08:51:46,273 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#1
[2025-02-06 08:51:46,274 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0
[2025-02-06 08:51:46,274 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1
[2025-02-06 08:51:46,274 INFO  L138     BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0
[2025-02-06 08:51:46,274 INFO  L138     BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1
[2025-02-06 08:51:46,274 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2025-02-06 08:51:46,274 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2025-02-06 08:51:46,274 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$#0
[2025-02-06 08:51:46,274 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$#1
[2025-02-06 08:51:46,274 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$#0
[2025-02-06 08:51:46,274 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$#1
[2025-02-06 08:51:46,274 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2025-02-06 08:51:46,274 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2025-02-06 08:51:46,274 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#1
[2025-02-06 08:51:46,274 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2025-02-06 08:51:46,275 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2025-02-06 08:51:46,391 INFO  L257             CfgBuilder]: Building ICFG
[2025-02-06 08:51:46,392 INFO  L287             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-02-06 08:51:47,169 INFO  L?                        ?]: Removed 208 outVars from TransFormulas that were not future-live.
[2025-02-06 08:51:47,169 INFO  L308             CfgBuilder]: Performing block encoding
[2025-02-06 08:51:47,195 INFO  L332             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2025-02-06 08:51:47,198 INFO  L337             CfgBuilder]: Removed 1 assume(true) statements.
[2025-02-06 08:51:47,198 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 08:51:47 BoogieIcfgContainer
[2025-02-06 08:51:47,198 INFO  L131        PluginConnector]: ------------------------ END IcfgBuilder----------------------------
[2025-02-06 08:51:47,200 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-02-06 08:51:47,200 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-02-06 08:51:47,203 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-02-06 08:51:47,204 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 08:51:45" (1/3) ...
[2025-02-06 08:51:47,204 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@666ce787 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 08:51:47, skipping insertion in model container
[2025-02-06 08:51:47,204 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:51:46" (2/3) ...
[2025-02-06 08:51:47,205 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@666ce787 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 08:51:47, skipping insertion in model container
[2025-02-06 08:51:47,205 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 08:51:47" (3/3) ...
[2025-02-06 08:51:47,206 INFO  L128   eAbstractionObserver]: Analyzing ICFG uthash_SFH_test1-1.i
[2025-02-06 08:51:47,226 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-02-06 08:51:47,227 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_SFH_test1-1.i that has 4 procedures, 234 locations, 1 initial locations, 20 loop locations, and 1 error locations.
[2025-02-06 08:51:47,278 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-02-06 08:51:47,289 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;@4482f8cc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-02-06 08:51:47,290 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-02-06 08:51:47,294 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 230 states, 213 states have (on average 1.6103286384976525) internal successors, (343), 224 states have internal predecessors, (343), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13)
[2025-02-06 08:51:47,304 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2025-02-06 08:51:47,304 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-06 08:51:47,308 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-06 08:51:47,308 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-06 08:51:47,316 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-06 08:51:47,316 INFO  L85        PathProgramCache]: Analyzing trace with hash -765919184, now seen corresponding path program 1 times
[2025-02-06 08:51:47,325 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-06 08:51:47,326 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546892248]
[2025-02-06 08:51:47,326 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-06 08:51:47,326 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-06 08:51:47,434 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes.
[2025-02-06 08:51:47,446 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements.
[2025-02-06 08:51:47,447 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-06 08:51:47,447 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-06 08:51:47,524 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-06 08:51:47,524 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-06 08:51:47,524 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546892248]
[2025-02-06 08:51:47,526 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546892248] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-06 08:51:47,526 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-06 08:51:47,526 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2025-02-06 08:51:47,527 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906675860]
[2025-02-06 08:51:47,528 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-06 08:51:47,530 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2025-02-06 08:51:47,530 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-06 08:51:47,541 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2025-02-06 08:51:47,542 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-02-06 08:51:47,544 INFO  L87              Difference]: Start difference. First operand  has 230 states, 213 states have (on average 1.6103286384976525) internal successors, (343), 224 states have internal predecessors, (343), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) Second operand  has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-06 08:51:47,660 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-06 08:51:47,660 INFO  L93              Difference]: Finished difference Result 650 states and 1057 transitions.
[2025-02-06 08:51:47,661 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2025-02-06 08:51:47,662 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9
[2025-02-06 08:51:47,662 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-06 08:51:47,669 INFO  L225             Difference]: With dead ends: 650
[2025-02-06 08:51:47,669 INFO  L226             Difference]: Without dead ends: 419
[2025-02-06 08:51:47,671 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-02-06 08:51:47,673 INFO  L435           NwaCegarLoop]: 312 mSDtfsCounter, 272 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2025-02-06 08:51:47,673 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 621 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-02-06 08:51:47,683 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 419 states.
[2025-02-06 08:51:47,704 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 228.
[2025-02-06 08:51:47,705 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 228 states, 212 states have (on average 1.4575471698113207) internal successors, (309), 222 states have internal predecessors, (309), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13)
[2025-02-06 08:51:47,710 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 335 transitions.
[2025-02-06 08:51:47,712 INFO  L78                 Accepts]: Start accepts. Automaton has 228 states and 335 transitions. Word has length 9
[2025-02-06 08:51:47,713 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-06 08:51:47,713 INFO  L471      AbstractCegarLoop]: Abstraction has 228 states and 335 transitions.
[2025-02-06 08:51:47,713 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-06 08:51:47,713 INFO  L276                IsEmpty]: Start isEmpty. Operand 228 states and 335 transitions.
[2025-02-06 08:51:47,715 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 84
[2025-02-06 08:51:47,716 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-06 08:51:47,717 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-06 08:51:47,717 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2025-02-06 08:51:47,717 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-06 08:51:47,717 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-06 08:51:47,717 INFO  L85        PathProgramCache]: Analyzing trace with hash 1713350602, now seen corresponding path program 1 times
[2025-02-06 08:51:47,717 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-06 08:51:47,718 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822267023]
[2025-02-06 08:51:47,718 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-06 08:51:47,718 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-06 08:51:47,780 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes.
[2025-02-06 08:51:47,790 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements.
[2025-02-06 08:51:47,790 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-06 08:51:47,790 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-06 08:51:48,079 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-06 08:51:48,079 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-06 08:51:48,079 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822267023]
[2025-02-06 08:51:48,079 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822267023] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-06 08:51:48,079 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-06 08:51:48,080 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-02-06 08:51:48,080 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860544720]
[2025-02-06 08:51:48,080 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-06 08:51:48,080 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-02-06 08:51:48,080 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-06 08:51:48,081 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-02-06 08:51:48,081 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-02-06 08:51:48,081 INFO  L87              Difference]: Start difference. First operand 228 states and 335 transitions. Second operand  has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-06 08:51:48,224 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-06 08:51:48,225 INFO  L93              Difference]: Finished difference Result 456 states and 670 transitions.
[2025-02-06 08:51:48,225 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-02-06 08:51:48,225 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83
[2025-02-06 08:51:48,225 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-06 08:51:48,227 INFO  L225             Difference]: With dead ends: 456
[2025-02-06 08:51:48,229 INFO  L226             Difference]: Without dead ends: 231
[2025-02-06 08:51:48,230 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2025-02-06 08:51:48,231 INFO  L435           NwaCegarLoop]: 285 mSDtfsCounter, 105 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 771 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2025-02-06 08:51:48,231 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 771 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-02-06 08:51:48,231 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 231 states.
[2025-02-06 08:51:48,247 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 228.
[2025-02-06 08:51:48,247 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 228 states, 212 states have (on average 1.4245283018867925) internal successors, (302), 222 states have internal predecessors, (302), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13)
[2025-02-06 08:51:48,250 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 328 transitions.
[2025-02-06 08:51:48,251 INFO  L78                 Accepts]: Start accepts. Automaton has 228 states and 328 transitions. Word has length 83
[2025-02-06 08:51:48,251 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-06 08:51:48,251 INFO  L471      AbstractCegarLoop]: Abstraction has 228 states and 328 transitions.
[2025-02-06 08:51:48,251 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-06 08:51:48,251 INFO  L276                IsEmpty]: Start isEmpty. Operand 228 states and 328 transitions.
[2025-02-06 08:51:48,254 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 84
[2025-02-06 08:51:48,254 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-06 08:51:48,254 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-06 08:51:48,254 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-02-06 08:51:48,254 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-06 08:51:48,254 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-06 08:51:48,255 INFO  L85        PathProgramCache]: Analyzing trace with hash 1425583715, now seen corresponding path program 1 times
[2025-02-06 08:51:48,255 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-06 08:51:48,255 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632561571]
[2025-02-06 08:51:48,255 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-06 08:51:48,255 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-06 08:51:48,296 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes.
[2025-02-06 08:51:48,321 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements.
[2025-02-06 08:51:48,324 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-06 08:51:48,324 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-06 08:51:48,473 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-06 08:51:48,473 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-06 08:51:48,474 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632561571]
[2025-02-06 08:51:48,474 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632561571] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-06 08:51:48,474 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-06 08:51:48,474 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2025-02-06 08:51:48,474 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199464016]
[2025-02-06 08:51:48,474 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-06 08:51:48,475 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2025-02-06 08:51:48,475 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-06 08:51:48,475 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2025-02-06 08:51:48,475 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-02-06 08:51:48,475 INFO  L87              Difference]: Start difference. First operand 228 states and 328 transitions. Second operand  has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-06 08:51:48,577 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-06 08:51:48,577 INFO  L93              Difference]: Finished difference Result 581 states and 841 transitions.
[2025-02-06 08:51:48,578 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2025-02-06 08:51:48,578 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83
[2025-02-06 08:51:48,578 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-06 08:51:48,580 INFO  L225             Difference]: With dead ends: 581
[2025-02-06 08:51:48,580 INFO  L226             Difference]: Without dead ends: 356
[2025-02-06 08:51:48,580 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-02-06 08:51:48,581 INFO  L435           NwaCegarLoop]: 304 mSDtfsCounter, 134 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2025-02-06 08:51:48,581 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 600 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-02-06 08:51:48,582 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 356 states.
[2025-02-06 08:51:48,599 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356.
[2025-02-06 08:51:48,600 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 356 states, 340 states have (on average 1.438235294117647) internal successors, (489), 350 states have internal predecessors, (489), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13)
[2025-02-06 08:51:48,601 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 515 transitions.
[2025-02-06 08:51:48,602 INFO  L78                 Accepts]: Start accepts. Automaton has 356 states and 515 transitions. Word has length 83
[2025-02-06 08:51:48,602 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-06 08:51:48,602 INFO  L471      AbstractCegarLoop]: Abstraction has 356 states and 515 transitions.
[2025-02-06 08:51:48,602 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-06 08:51:48,602 INFO  L276                IsEmpty]: Start isEmpty. Operand 356 states and 515 transitions.
[2025-02-06 08:51:48,604 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 99
[2025-02-06 08:51:48,604 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-06 08:51:48,604 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-06 08:51:48,604 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-02-06 08:51:48,604 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-06 08:51:48,605 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-06 08:51:48,605 INFO  L85        PathProgramCache]: Analyzing trace with hash -1476013556, now seen corresponding path program 1 times
[2025-02-06 08:51:48,605 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-06 08:51:48,605 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621554725]
[2025-02-06 08:51:48,605 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-06 08:51:48,605 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-06 08:51:48,638 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes.
[2025-02-06 08:51:48,662 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements.
[2025-02-06 08:51:48,663 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-06 08:51:48,663 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-06 08:51:48,825 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2025-02-06 08:51:48,825 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-06 08:51:48,826 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621554725]
[2025-02-06 08:51:48,826 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621554725] provided 0 perfect and 1 imperfect interpolant sequences
[2025-02-06 08:51:48,826 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [567580842]
[2025-02-06 08:51:48,827 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-06 08:51:48,827 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-02-06 08:51:48,827 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2025-02-06 08:51:48,832 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2025-02-06 08:51:48,833 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2025-02-06 08:51:48,968 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes.
[2025-02-06 08:51:49,034 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements.
[2025-02-06 08:51:49,034 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-06 08:51:49,034 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-06 08:51:49,038 INFO  L256         TraceCheckSpWp]: Trace formula consists of 564 conjuncts, 3 conjuncts are in the unsatisfiable core
[2025-02-06 08:51:49,050 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-02-06 08:51:49,178 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2025-02-06 08:51:49,178 INFO  L312         TraceCheckSpWp]: Computing backward predicates...
[2025-02-06 08:51:49,311 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2025-02-06 08:51:49,312 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [567580842] provided 0 perfect and 2 imperfect interpolant sequences
[2025-02-06 08:51:49,312 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2025-02-06 08:51:49,312 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7
[2025-02-06 08:51:49,312 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333714483]
[2025-02-06 08:51:49,312 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2025-02-06 08:51:49,312 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2025-02-06 08:51:49,312 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-06 08:51:49,313 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2025-02-06 08:51:49,313 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2025-02-06 08:51:49,313 INFO  L87              Difference]: Start difference. First operand 356 states and 515 transitions. Second operand  has 7 states, 7 states have (on average 35.857142857142854) internal successors, (251), 7 states have internal predecessors, (251), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6)
[2025-02-06 08:51:49,492 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-06 08:51:49,492 INFO  L93              Difference]: Finished difference Result 831 states and 1192 transitions.
[2025-02-06 08:51:49,493 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-02-06 08:51:49,493 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 35.857142857142854) internal successors, (251), 7 states have internal predecessors, (251), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 98
[2025-02-06 08:51:49,493 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-06 08:51:49,499 INFO  L225             Difference]: With dead ends: 831
[2025-02-06 08:51:49,500 INFO  L226             Difference]: Without dead ends: 802
[2025-02-06 08:51:49,500 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2025-02-06 08:51:49,500 INFO  L435           NwaCegarLoop]: 341 mSDtfsCounter, 1231 mSDsluCounter, 1076 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1239 SdHoareTripleChecker+Valid, 1417 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2025-02-06 08:51:49,501 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [1239 Valid, 1417 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-02-06 08:51:49,502 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 802 states.
[2025-02-06 08:51:49,528 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 802 to 802.
[2025-02-06 08:51:49,530 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 802 states, 777 states have (on average 1.4118404118404118) internal successors, (1097), 787 states have internal predecessors, (1097), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22)
[2025-02-06 08:51:49,533 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 802 states and 1141 transitions.
[2025-02-06 08:51:49,534 INFO  L78                 Accepts]: Start accepts. Automaton has 802 states and 1141 transitions. Word has length 98
[2025-02-06 08:51:49,535 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-06 08:51:49,536 INFO  L471      AbstractCegarLoop]: Abstraction has 802 states and 1141 transitions.
[2025-02-06 08:51:49,536 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 35.857142857142854) internal successors, (251), 7 states have internal predecessors, (251), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6)
[2025-02-06 08:51:49,536 INFO  L276                IsEmpty]: Start isEmpty. Operand 802 states and 1141 transitions.
[2025-02-06 08:51:49,541 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 321
[2025-02-06 08:51:49,543 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-06 08:51:49,543 INFO  L218           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1]
[2025-02-06 08:51:49,553 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2025-02-06 08:51:49,744 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-02-06 08:51:49,745 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-06 08:51:49,745 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-06 08:51:49,745 INFO  L85        PathProgramCache]: Analyzing trace with hash 2051493989, now seen corresponding path program 1 times
[2025-02-06 08:51:49,745 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-06 08:51:49,745 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96896956]
[2025-02-06 08:51:49,746 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-06 08:51:49,746 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-06 08:51:49,857 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 320 statements into 1 equivalence classes.
[2025-02-06 08:51:49,975 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 320 of 320 statements.
[2025-02-06 08:51:49,975 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-06 08:51:49,975 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-06 08:51:50,537 INFO  L134       CoverageAnalysis]: Checked inductivity of 446 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2025-02-06 08:51:50,539 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-06 08:51:50,539 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96896956]
[2025-02-06 08:51:50,539 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96896956] provided 0 perfect and 1 imperfect interpolant sequences
[2025-02-06 08:51:50,539 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1638921701]
[2025-02-06 08:51:50,539 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-06 08:51:50,539 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-02-06 08:51:50,539 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2025-02-06 08:51:50,546 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2025-02-06 08:51:50,549 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2025-02-06 08:51:50,775 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 320 statements into 1 equivalence classes.
[2025-02-06 08:51:50,949 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 320 of 320 statements.
[2025-02-06 08:51:50,949 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-06 08:51:50,950 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-06 08:51:50,958 INFO  L256         TraceCheckSpWp]: Trace formula consists of 1659 conjuncts, 6 conjuncts are in the unsatisfiable core
[2025-02-06 08:51:50,965 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-02-06 08:51:51,335 INFO  L134       CoverageAnalysis]: Checked inductivity of 446 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2025-02-06 08:51:51,336 INFO  L312         TraceCheckSpWp]: Computing backward predicates...
[2025-02-06 08:51:51,659 INFO  L134       CoverageAnalysis]: Checked inductivity of 446 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2025-02-06 08:51:51,660 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1638921701] provided 0 perfect and 2 imperfect interpolant sequences
[2025-02-06 08:51:51,660 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2025-02-06 08:51:51,660 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13
[2025-02-06 08:51:51,660 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016867823]
[2025-02-06 08:51:51,660 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2025-02-06 08:51:51,661 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2025-02-06 08:51:51,661 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-06 08:51:51,662 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2025-02-06 08:51:51,662 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156
[2025-02-06 08:51:51,663 INFO  L87              Difference]: Start difference. First operand 802 states and 1141 transitions. Second operand  has 13 states, 13 states have (on average 53.46153846153846) internal successors, (695), 13 states have internal predecessors, (695), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6)
[2025-02-06 08:51:52,053 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-06 08:51:52,053 INFO  L93              Difference]: Finished difference Result 1983 states and 2827 transitions.
[2025-02-06 08:51:52,054 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2025-02-06 08:51:52,054 INFO  L78                 Accepts]: Start accepts. Automaton has  has 13 states, 13 states have (on average 53.46153846153846) internal successors, (695), 13 states have internal predecessors, (695), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 320
[2025-02-06 08:51:52,055 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-06 08:51:52,061 INFO  L225             Difference]: With dead ends: 1983
[2025-02-06 08:51:52,062 INFO  L226             Difference]: Without dead ends: 1954
[2025-02-06 08:51:52,062 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 645 GetRequests, 634 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156
[2025-02-06 08:51:52,063 INFO  L435           NwaCegarLoop]: 419 mSDtfsCounter, 5048 mSDsluCounter, 2748 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5074 SdHoareTripleChecker+Valid, 3167 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2025-02-06 08:51:52,063 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [5074 Valid, 3167 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2025-02-06 08:51:52,067 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1954 states.
[2025-02-06 08:51:52,107 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1954 to 1954.
[2025-02-06 08:51:52,110 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1954 states, 1911 states have (on average 1.4092098377812663) internal successors, (2693), 1921 states have internal predecessors, (2693), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 31 states have call predecessors, (40), 40 states have call successors, (40)
[2025-02-06 08:51:52,117 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1954 states to 1954 states and 2773 transitions.
[2025-02-06 08:51:52,118 INFO  L78                 Accepts]: Start accepts. Automaton has 1954 states and 2773 transitions. Word has length 320
[2025-02-06 08:51:52,118 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-06 08:51:52,119 INFO  L471      AbstractCegarLoop]: Abstraction has 1954 states and 2773 transitions.
[2025-02-06 08:51:52,119 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 13 states, 13 states have (on average 53.46153846153846) internal successors, (695), 13 states have internal predecessors, (695), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6)
[2025-02-06 08:51:52,119 INFO  L276                IsEmpty]: Start isEmpty. Operand 1954 states and 2773 transitions.
[2025-02-06 08:51:52,132 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 765
[2025-02-06 08:51:52,132 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-06 08:51:52,133 INFO  L218           NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-06 08:51:52,142 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2025-02-06 08:51:52,337 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-02-06 08:51:52,337 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-06 08:51:52,338 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-06 08:51:52,338 INFO  L85        PathProgramCache]: Analyzing trace with hash -1526485033, now seen corresponding path program 2 times
[2025-02-06 08:51:52,338 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-06 08:51:52,338 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893169643]
[2025-02-06 08:51:52,338 INFO  L95    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2025-02-06 08:51:52,338 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-06 08:51:52,614 INFO  L108    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 764 statements into 2 equivalence classes.
[2025-02-06 08:53:03,489 INFO  L111    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 764 of 764 statements.
[2025-02-06 08:53:03,489 INFO  L114    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2025-02-06 08:53:03,490 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-06 08:53:04,336 INFO  L134       CoverageAnalysis]: Checked inductivity of 3326 backedges. 487 proven. 3 refuted. 0 times theorem prover too weak. 2836 trivial. 0 not checked.
[2025-02-06 08:53:04,339 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-06 08:53:04,339 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893169643]
[2025-02-06 08:53:04,339 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893169643] provided 0 perfect and 1 imperfect interpolant sequences
[2025-02-06 08:53:04,339 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [338942350]
[2025-02-06 08:53:04,339 INFO  L95    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2025-02-06 08:53:04,339 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-02-06 08:53:04,339 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2025-02-06 08:53:04,341 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2025-02-06 08:53:04,345 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2025-02-06 08:53:04,831 INFO  L108    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 764 statements into 2 equivalence classes.
[2025-02-06 08:53:23,958 INFO  L111    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 764 of 764 statements.
[2025-02-06 08:53:23,958 INFO  L114    AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2025-02-06 08:53:23,959 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-06 08:53:24,020 INFO  L256         TraceCheckSpWp]: Trace formula consists of 3849 conjuncts, 39 conjuncts are in the unsatisfiable core
[2025-02-06 08:53:24,032 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-02-06 08:53:24,136 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15
[2025-02-06 08:53:24,615 INFO  L349             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2025-02-06 08:53:24,615 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 46
[2025-02-06 08:53:24,769 INFO  L134       CoverageAnalysis]: Checked inductivity of 3326 backedges. 867 proven. 31 refuted. 0 times theorem prover too weak. 2428 trivial. 0 not checked.
[2025-02-06 08:53:24,770 INFO  L312         TraceCheckSpWp]: Computing backward predicates...