./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-2.i --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version 48c9605d
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_BER_test8-2.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 fe37ed55d149c65fede95413b0b499314c3ede2b9eb9a49f03115ea64cafc68c
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-48c9605-m
[2025-02-08 04:48:06,274 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-02-08 04:48:06,343 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2025-02-08 04:48:06,349 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-02-08 04:48:06,349 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-02-08 04:48:06,374 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-02-08 04:48:06,375 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-02-08 04:48:06,375 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-02-08 04:48:06,375 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2025-02-08 04:48:06,375 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2025-02-08 04:48:06,376 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-02-08 04:48:06,376 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-02-08 04:48:06,376 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-02-08 04:48:06,376 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-02-08 04:48:06,376 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-02-08 04:48:06,376 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2025-02-08 04:48:06,377 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2025-02-08 04:48:06,377 INFO  L153        SettingsManager]:  * sizeof long=4
[2025-02-08 04:48:06,377 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2025-02-08 04:48:06,377 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2025-02-08 04:48:06,377 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2025-02-08 04:48:06,377 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2025-02-08 04:48:06,377 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2025-02-08 04:48:06,378 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2025-02-08 04:48:06,378 INFO  L153        SettingsManager]:  * sizeof long double=12
[2025-02-08 04:48:06,378 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2025-02-08 04:48:06,378 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2025-02-08 04:48:06,378 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2025-02-08 04:48:06,378 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2025-02-08 04:48:06,378 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-02-08 04:48:06,378 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2025-02-08 04:48:06,378 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-02-08 04:48:06,379 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-02-08 04:48:06,379 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-02-08 04:48:06,379 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-02-08 04:48:06,379 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2025-02-08 04:48:06,379 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2025-02-08 04:48:06,379 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-02-08 04:48:06,379 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-02-08 04:48:06,379 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2025-02-08 04:48:06,379 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-02-08 04:48:06,380 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2025-02-08 04:48:06,380 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-02-08 04:48:06,380 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 -> fe37ed55d149c65fede95413b0b499314c3ede2b9eb9a49f03115ea64cafc68c
[2025-02-08 04:48:06,679 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-02-08 04:48:06,690 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-02-08 04:48:06,692 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-02-08 04:48:06,693 INFO  L270        PluginConnector]: Initializing CDTParser...
[2025-02-08 04:48:06,693 INFO  L274        PluginConnector]: CDTParser initialized
[2025-02-08 04:48:06,695 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-2.i
[2025-02-08 04:48:08,080 INFO  L533              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/381eae28c/c2c6c57e81074bb8ab7aac8a0f08f727/FLAGc3963c47d
[2025-02-08 04:48:08,514 INFO  L384              CDTParser]: Found 1 translation units.
[2025-02-08 04:48:08,514 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test8-2.i
[2025-02-08 04:48:08,544 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/381eae28c/c2c6c57e81074bb8ab7aac8a0f08f727/FLAGc3963c47d
[2025-02-08 04:48:08,566 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/381eae28c/c2c6c57e81074bb8ab7aac8a0f08f727
[2025-02-08 04:48:08,568 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-02-08 04:48:08,570 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2025-02-08 04:48:08,572 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2025-02-08 04:48:08,572 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2025-02-08 04:48:08,578 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2025-02-08 04:48:08,579 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 04:48:08" (1/1) ...
[2025-02-08 04:48:08,581 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d839858 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 04:48:08, skipping insertion in model container
[2025-02-08 04:48:08,581 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 04:48:08" (1/1) ...
[2025-02-08 04:48:08,627 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2025-02-08 04:48:08,950 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_BER_test8-2.i[33021,33034]
[2025-02-08 04:48:09,079 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_BER_test8-2.i[45234,45247]
[2025-02-08 04:48:09,097 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-02-08 04:48:09,112 INFO  L200         MainTranslator]: Completed pre-run
[2025-02-08 04:48:09,162 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_BER_test8-2.i[33021,33034]
[2025-02-08 04:48:09,224 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_BER_test8-2.i[45234,45247]
[2025-02-08 04:48:09,232 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-02-08 04:48:09,263 INFO  L204         MainTranslator]: Completed translation
[2025-02-08 04:48:09,264 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 04:48:09 WrapperNode
[2025-02-08 04:48:09,264 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2025-02-08 04:48:09,265 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2025-02-08 04:48:09,265 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2025-02-08 04:48:09,265 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2025-02-08 04:48:09,272 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 04:48:09" (1/1) ...
[2025-02-08 04:48:09,297 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 04:48:09" (1/1) ...
[2025-02-08 04:48:09,363 INFO  L138                Inliner]: procedures = 177, calls = 340, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1540
[2025-02-08 04:48:09,363 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2025-02-08 04:48:09,364 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-02-08 04:48:09,364 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-02-08 04:48:09,364 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-02-08 04:48:09,372 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 04:48:09" (1/1) ...
[2025-02-08 04:48:09,373 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 04:48:09" (1/1) ...
[2025-02-08 04:48:09,383 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 04:48:09" (1/1) ...
[2025-02-08 04:48:09,488 INFO  L175           MemorySlicer]: Split 304 memory accesses to 3 slices as follows [2, 268, 34]. 88 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 62 writes are split as follows [0, 58, 4].
[2025-02-08 04:48:09,488 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 04:48:09" (1/1) ...
[2025-02-08 04:48:09,488 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 04:48:09" (1/1) ...
[2025-02-08 04:48:09,534 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 04:48:09" (1/1) ...
[2025-02-08 04:48:09,538 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 04:48:09" (1/1) ...
[2025-02-08 04:48:09,548 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 04:48:09" (1/1) ...
[2025-02-08 04:48:09,554 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 04:48:09" (1/1) ...
[2025-02-08 04:48:09,565 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-02-08 04:48:09,566 INFO  L112        PluginConnector]: ------------------------IcfgBuilder----------------------------
[2025-02-08 04:48:09,566 INFO  L270        PluginConnector]: Initializing IcfgBuilder...
[2025-02-08 04:48:09,566 INFO  L274        PluginConnector]: IcfgBuilder initialized
[2025-02-08 04:48:09,568 INFO  L184        PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 04:48:09" (1/1) ...
[2025-02-08 04:48:09,574 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-02-08 04:48:09,588 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2025-02-08 04:48:09,604 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)
[2025-02-08 04:48:09,609 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
[2025-02-08 04:48:09,630 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#0
[2025-02-08 04:48:09,630 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#1
[2025-02-08 04:48:09,630 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#2
[2025-02-08 04:48:09,630 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2025-02-08 04:48:09,631 INFO  L138     BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2025-02-08 04:48:09,631 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#0
[2025-02-08 04:48:09,631 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#1
[2025-02-08 04:48:09,631 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#2
[2025-02-08 04:48:09,631 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0
[2025-02-08 04:48:09,631 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1
[2025-02-08 04:48:09,631 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2
[2025-02-08 04:48:09,631 INFO  L138     BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0
[2025-02-08 04:48:09,631 INFO  L138     BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1
[2025-02-08 04:48:09,631 INFO  L138     BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2
[2025-02-08 04:48:09,631 INFO  L130     BoogieDeclarations]: Found specification of procedure test_int
[2025-02-08 04:48:09,631 INFO  L138     BoogieDeclarations]: Found implementation of procedure test_int
[2025-02-08 04:48:09,632 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2025-02-08 04:48:09,632 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2025-02-08 04:48:09,632 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$#0
[2025-02-08 04:48:09,632 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$#1
[2025-02-08 04:48:09,632 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$#2
[2025-02-08 04:48:09,632 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2025-02-08 04:48:09,632 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$#0
[2025-02-08 04:48:09,632 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$#1
[2025-02-08 04:48:09,632 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$#2
[2025-02-08 04:48:09,632 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2025-02-08 04:48:09,632 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2025-02-08 04:48:09,632 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#1
[2025-02-08 04:48:09,632 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#2
[2025-02-08 04:48:09,632 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2025-02-08 04:48:09,632 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2025-02-08 04:48:09,865 INFO  L257             CfgBuilder]: Building ICFG
[2025-02-08 04:48:09,869 INFO  L287             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-02-08 04:48:11,464 INFO  L1324  $ProcedureCfgBuilder]: dead code at ProgramPoint L763: call ULTIMATE.dealloc(main_~#i~0#1.base, main_~#i~0#1.offset);havoc main_~#i~0#1.base, main_~#i~0#1.offset;
[2025-02-08 04:48:11,576 INFO  L?                        ?]: Removed 353 outVars from TransFormulas that were not future-live.
[2025-02-08 04:48:11,576 INFO  L308             CfgBuilder]: Performing block encoding
[2025-02-08 04:48:11,643 INFO  L332             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2025-02-08 04:48:11,647 INFO  L337             CfgBuilder]: Removed 1 assume(true) statements.
[2025-02-08 04:48:11,647 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 04:48:11 BoogieIcfgContainer
[2025-02-08 04:48:11,647 INFO  L131        PluginConnector]: ------------------------ END IcfgBuilder----------------------------
[2025-02-08 04:48:11,649 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-02-08 04:48:11,649 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-02-08 04:48:11,656 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-02-08 04:48:11,656 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 04:48:08" (1/3) ...
[2025-02-08 04:48:11,657 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56058417 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 04:48:11, skipping insertion in model container
[2025-02-08 04:48:11,657 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 04:48:09" (2/3) ...
[2025-02-08 04:48:11,657 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56058417 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 04:48:11, skipping insertion in model container
[2025-02-08 04:48:11,657 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 04:48:11" (3/3) ...
[2025-02-08 04:48:11,658 INFO  L128   eAbstractionObserver]: Analyzing ICFG uthash_BER_test8-2.i
[2025-02-08 04:48:11,673 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-02-08 04:48:11,675 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_BER_test8-2.i that has 6 procedures, 472 locations, 1 initial locations, 42 loop locations, and 2 error locations.
[2025-02-08 04:48:11,747 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-02-08 04:48:11,760 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;@7fe7d528, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-02-08 04:48:11,761 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2025-02-08 04:48:11,768 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 464 states, 437 states have (on average 1.6270022883295194) internal successors, (711), 454 states have internal predecessors, (711), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20)
[2025-02-08 04:48:11,773 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2025-02-08 04:48:11,774 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-08 04:48:11,774 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-08 04:48:11,775 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-08 04:48:11,779 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-08 04:48:11,779 INFO  L85        PathProgramCache]: Analyzing trace with hash -153701349, now seen corresponding path program 1 times
[2025-02-08 04:48:11,786 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-08 04:48:11,786 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951251784]
[2025-02-08 04:48:11,787 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-08 04:48:11,787 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-08 04:48:11,869 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes.
[2025-02-08 04:48:11,885 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements.
[2025-02-08 04:48:11,885 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-08 04:48:11,886 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-08 04:48:11,934 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-08 04:48:11,935 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-08 04:48:11,936 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951251784]
[2025-02-08 04:48:11,937 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951251784] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-08 04:48:11,937 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-08 04:48:11,937 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2025-02-08 04:48:11,938 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370209350]
[2025-02-08 04:48:11,939 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-08 04:48:11,942 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2025-02-08 04:48:11,942 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-08 04:48:11,958 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2025-02-08 04:48:11,958 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2025-02-08 04:48:11,962 INFO  L87              Difference]: Start difference. First operand  has 464 states, 437 states have (on average 1.6270022883295194) internal successors, (711), 454 states have internal predecessors, (711), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) Second operand  has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-08 04:48:12,144 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-08 04:48:12,145 INFO  L93              Difference]: Finished difference Result 927 states and 1516 transitions.
[2025-02-08 04:48:12,147 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2025-02-08 04:48:12,148 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8
[2025-02-08 04:48:12,148 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-08 04:48:12,159 INFO  L225             Difference]: With dead ends: 927
[2025-02-08 04:48:12,159 INFO  L226             Difference]: Without dead ends: 424
[2025-02-08 04:48:12,183 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2025-02-08 04:48:12,185 INFO  L435           NwaCegarLoop]: 636 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2025-02-08 04:48:12,186 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 636 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-02-08 04:48:12,205 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 424 states.
[2025-02-08 04:48:12,248 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 424.
[2025-02-08 04:48:12,250 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 424 states, 400 states have (on average 1.4675) internal successors, (587), 415 states have internal predecessors, (587), 20 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5)
[2025-02-08 04:48:12,254 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 612 transitions.
[2025-02-08 04:48:12,257 INFO  L78                 Accepts]: Start accepts. Automaton has 424 states and 612 transitions. Word has length 8
[2025-02-08 04:48:12,257 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-08 04:48:12,257 INFO  L471      AbstractCegarLoop]: Abstraction has 424 states and 612 transitions.
[2025-02-08 04:48:12,257 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-08 04:48:12,257 INFO  L276                IsEmpty]: Start isEmpty. Operand 424 states and 612 transitions.
[2025-02-08 04:48:12,260 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 63
[2025-02-08 04:48:12,260 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-08 04:48:12,260 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]
[2025-02-08 04:48:12,261 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2025-02-08 04:48:12,261 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-08 04:48:12,261 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-08 04:48:12,261 INFO  L85        PathProgramCache]: Analyzing trace with hash 1218807855, now seen corresponding path program 1 times
[2025-02-08 04:48:12,261 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-08 04:48:12,262 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944704609]
[2025-02-08 04:48:12,262 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-08 04:48:12,262 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-08 04:48:12,286 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 62 statements into 1 equivalence classes.
[2025-02-08 04:48:12,309 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 62 of 62 statements.
[2025-02-08 04:48:12,309 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-08 04:48:12,309 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-08 04:48:12,782 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-08 04:48:12,783 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-08 04:48:12,783 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944704609]
[2025-02-08 04:48:12,783 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944704609] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-08 04:48:12,783 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-08 04:48:12,783 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2025-02-08 04:48:12,783 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296320248]
[2025-02-08 04:48:12,783 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-08 04:48:12,785 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-02-08 04:48:12,785 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-08 04:48:12,785 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-02-08 04:48:12,787 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-02-08 04:48:12,787 INFO  L87              Difference]: Start difference. First operand 424 states and 612 transitions. Second operand  has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-08 04:48:13,117 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-08 04:48:13,117 INFO  L93              Difference]: Finished difference Result 1029 states and 1491 transitions.
[2025-02-08 04:48:13,119 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-02-08 04:48:13,120 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62
[2025-02-08 04:48:13,120 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-08 04:48:13,125 INFO  L225             Difference]: With dead ends: 1029
[2025-02-08 04:48:13,125 INFO  L226             Difference]: Without dead ends: 805
[2025-02-08 04:48:13,127 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2025-02-08 04:48:13,127 INFO  L435           NwaCegarLoop]: 590 mSDtfsCounter, 543 mSDsluCounter, 1133 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 1723 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2025-02-08 04:48:13,128 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [548 Valid, 1723 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2025-02-08 04:48:13,130 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 805 states.
[2025-02-08 04:48:13,163 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 805 to 426.
[2025-02-08 04:48:13,164 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 426 states, 402 states have (on average 1.4651741293532339) internal successors, (589), 417 states have internal predecessors, (589), 20 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5)
[2025-02-08 04:48:13,167 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 614 transitions.
[2025-02-08 04:48:13,167 INFO  L78                 Accepts]: Start accepts. Automaton has 426 states and 614 transitions. Word has length 62
[2025-02-08 04:48:13,167 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-08 04:48:13,167 INFO  L471      AbstractCegarLoop]: Abstraction has 426 states and 614 transitions.
[2025-02-08 04:48:13,168 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-08 04:48:13,168 INFO  L276                IsEmpty]: Start isEmpty. Operand 426 states and 614 transitions.
[2025-02-08 04:48:13,172 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 84
[2025-02-08 04:48:13,175 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-08 04:48:13,175 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]
[2025-02-08 04:48:13,175 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-02-08 04:48:13,175 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-08 04:48:13,176 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-08 04:48:13,176 INFO  L85        PathProgramCache]: Analyzing trace with hash -513930211, now seen corresponding path program 1 times
[2025-02-08 04:48:13,176 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-08 04:48:13,176 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034409389]
[2025-02-08 04:48:13,176 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-08 04:48:13,176 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-08 04:48:13,244 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes.
[2025-02-08 04:48:13,257 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements.
[2025-02-08 04:48:13,261 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-08 04:48:13,261 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-08 04:48:13,567 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-08 04:48:13,568 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-08 04:48:13,568 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034409389]
[2025-02-08 04:48:13,568 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034409389] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-08 04:48:13,569 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-08 04:48:13,569 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-02-08 04:48:13,569 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632867948]
[2025-02-08 04:48:13,569 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-08 04:48:13,569 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-02-08 04:48:13,570 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-08 04:48:13,571 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-02-08 04:48:13,571 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-02-08 04:48:13,571 INFO  L87              Difference]: Start difference. First operand 426 states and 614 transitions. Second operand  has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-08 04:48:13,743 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-08 04:48:13,743 INFO  L93              Difference]: Finished difference Result 807 states and 1159 transitions.
[2025-02-08 04:48:13,743 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2025-02-08 04:48:13,744 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83
[2025-02-08 04:48:13,744 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-08 04:48:13,746 INFO  L225             Difference]: With dead ends: 807
[2025-02-08 04:48:13,747 INFO  L226             Difference]: Without dead ends: 384
[2025-02-08 04:48:13,748 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2025-02-08 04:48:13,749 INFO  L435           NwaCegarLoop]: 478 mSDtfsCounter, 30 mSDsluCounter, 937 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 1415 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2025-02-08 04:48:13,749 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 1415 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-02-08 04:48:13,751 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 384 states.
[2025-02-08 04:48:13,760 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 384.
[2025-02-08 04:48:13,761 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 384 states, 360 states have (on average 1.4222222222222223) internal successors, (512), 375 states have internal predecessors, (512), 20 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5)
[2025-02-08 04:48:13,763 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 537 transitions.
[2025-02-08 04:48:13,764 INFO  L78                 Accepts]: Start accepts. Automaton has 384 states and 537 transitions. Word has length 83
[2025-02-08 04:48:13,764 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-08 04:48:13,764 INFO  L471      AbstractCegarLoop]: Abstraction has 384 states and 537 transitions.
[2025-02-08 04:48:13,764 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-08 04:48:13,764 INFO  L276                IsEmpty]: Start isEmpty. Operand 384 states and 537 transitions.
[2025-02-08 04:48:13,766 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 84
[2025-02-08 04:48:13,766 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-08 04:48:13,766 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]
[2025-02-08 04:48:13,766 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-02-08 04:48:13,766 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-08 04:48:13,767 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-08 04:48:13,767 INFO  L85        PathProgramCache]: Analyzing trace with hash -801697098, now seen corresponding path program 1 times
[2025-02-08 04:48:13,767 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-08 04:48:13,767 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894859819]
[2025-02-08 04:48:13,767 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-08 04:48:13,767 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-08 04:48:13,818 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes.
[2025-02-08 04:48:13,848 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements.
[2025-02-08 04:48:13,848 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-08 04:48:13,848 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-08 04:48:13,974 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-08 04:48:13,976 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-08 04:48:13,976 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894859819]
[2025-02-08 04:48:13,976 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894859819] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-08 04:48:13,976 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-08 04:48:13,976 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2025-02-08 04:48:13,976 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991825265]
[2025-02-08 04:48:13,976 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-08 04:48:13,977 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2025-02-08 04:48:13,977 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-08 04:48:13,977 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2025-02-08 04:48:13,977 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-02-08 04:48:13,978 INFO  L87              Difference]: Start difference. First operand 384 states and 537 transitions. Second operand  has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-08 04:48:14,169 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-08 04:48:14,169 INFO  L93              Difference]: Finished difference Result 1015 states and 1431 transitions.
[2025-02-08 04:48:14,170 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2025-02-08 04:48:14,170 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83
[2025-02-08 04:48:14,171 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-08 04:48:14,174 INFO  L225             Difference]: With dead ends: 1015
[2025-02-08 04:48:14,174 INFO  L226             Difference]: Without dead ends: 634
[2025-02-08 04:48:14,175 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-02-08 04:48:14,177 INFO  L435           NwaCegarLoop]: 665 mSDtfsCounter, 294 mSDsluCounter, 473 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 1138 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2025-02-08 04:48:14,178 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 1138 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2025-02-08 04:48:14,181 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 634 states.
[2025-02-08 04:48:14,202 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 631.
[2025-02-08 04:48:14,204 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 631 states, 606 states have (on average 1.4290429042904291) internal successors, (866), 621 states have internal predecessors, (866), 21 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2025-02-08 04:48:14,207 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 893 transitions.
[2025-02-08 04:48:14,208 INFO  L78                 Accepts]: Start accepts. Automaton has 631 states and 893 transitions. Word has length 83
[2025-02-08 04:48:14,208 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-08 04:48:14,208 INFO  L471      AbstractCegarLoop]: Abstraction has 631 states and 893 transitions.
[2025-02-08 04:48:14,209 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-08 04:48:14,209 INFO  L276                IsEmpty]: Start isEmpty. Operand 631 states and 893 transitions.
[2025-02-08 04:48:14,211 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 99
[2025-02-08 04:48:14,212 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-08 04:48:14,212 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]
[2025-02-08 04:48:14,212 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-02-08 04:48:14,213 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-08 04:48:14,213 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-08 04:48:14,213 INFO  L85        PathProgramCache]: Analyzing trace with hash -1884121865, now seen corresponding path program 1 times
[2025-02-08 04:48:14,214 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-08 04:48:14,214 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216742062]
[2025-02-08 04:48:14,214 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-08 04:48:14,214 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-08 04:48:14,275 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes.
[2025-02-08 04:48:14,575 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements.
[2025-02-08 04:48:14,576 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-08 04:48:14,576 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-08 04:48:14,837 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2025-02-08 04:48:14,837 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-08 04:48:14,837 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216742062]
[2025-02-08 04:48:14,837 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216742062] provided 0 perfect and 1 imperfect interpolant sequences
[2025-02-08 04:48:14,837 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1260043823]
[2025-02-08 04:48:14,838 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-08 04:48:14,838 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-02-08 04:48:14,838 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2025-02-08 04:48:14,843 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)
[2025-02-08 04:48:14,845 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
[2025-02-08 04:48:15,058 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes.
[2025-02-08 04:48:15,160 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements.
[2025-02-08 04:48:15,161 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-08 04:48:15,161 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-08 04:48:15,165 INFO  L256         TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 31 conjuncts are in the unsatisfiable core
[2025-02-08 04:48:15,174 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-02-08 04:48:15,197 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
[2025-02-08 04:48:15,226 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 22 treesize of output 7
[2025-02-08 04:48:15,763 INFO  L349             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2025-02-08 04:48:15,764 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 77 treesize of output 55
[2025-02-08 04:48:16,017 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2025-02-08 04:48:16,018 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2025-02-08 04:48:16,018 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1260043823] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-08 04:48:16,018 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2025-02-08 04:48:16,018 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [4] total 13
[2025-02-08 04:48:16,018 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460360632]
[2025-02-08 04:48:16,018 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-08 04:48:16,021 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2025-02-08 04:48:16,021 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-08 04:48:16,022 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2025-02-08 04:48:16,022 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156
[2025-02-08 04:48:16,023 INFO  L87              Difference]: Start difference. First operand 631 states and 893 transitions. Second operand  has 11 states, 11 states have (on average 8.090909090909092) internal successors, (89), 10 states have internal predecessors, (89), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2025-02-08 04:48:18,440 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-08 04:48:18,441 INFO  L93              Difference]: Finished difference Result 1516 states and 2152 transitions.
[2025-02-08 04:48:18,441 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2025-02-08 04:48:18,441 INFO  L78                 Accepts]: Start accepts. Automaton has  has 11 states, 11 states have (on average 8.090909090909092) internal successors, (89), 10 states have internal predecessors, (89), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 98
[2025-02-08 04:48:18,442 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-08 04:48:18,446 INFO  L225             Difference]: With dead ends: 1516
[2025-02-08 04:48:18,446 INFO  L226             Difference]: Without dead ends: 927
[2025-02-08 04:48:18,448 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=87, Invalid=333, Unknown=0, NotChecked=0, Total=420
[2025-02-08 04:48:18,448 INFO  L435           NwaCegarLoop]: 479 mSDtfsCounter, 590 mSDsluCounter, 3176 mSDsCounter, 0 mSdLazyCounter, 1201 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 594 SdHoareTripleChecker+Valid, 3655 SdHoareTripleChecker+Invalid, 1206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time
[2025-02-08 04:48:18,449 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [594 Valid, 3655 Invalid, 1206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1201 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time]
[2025-02-08 04:48:18,450 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 927 states.
[2025-02-08 04:48:18,473 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 927 to 631.
[2025-02-08 04:48:18,474 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 631 states, 606 states have (on average 1.4273927392739274) internal successors, (865), 621 states have internal predecessors, (865), 21 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2025-02-08 04:48:18,477 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 892 transitions.
[2025-02-08 04:48:18,477 INFO  L78                 Accepts]: Start accepts. Automaton has 631 states and 892 transitions. Word has length 98
[2025-02-08 04:48:18,477 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-08 04:48:18,478 INFO  L471      AbstractCegarLoop]: Abstraction has 631 states and 892 transitions.
[2025-02-08 04:48:18,478 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 11 states, 11 states have (on average 8.090909090909092) internal successors, (89), 10 states have internal predecessors, (89), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2025-02-08 04:48:18,478 INFO  L276                IsEmpty]: Start isEmpty. Operand 631 states and 892 transitions.
[2025-02-08 04:48:18,480 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 100
[2025-02-08 04:48:18,481 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-08 04:48:18,481 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, 1]
[2025-02-08 04:48:18,494 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2025-02-08 04:48:18,681 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-02-08 04:48:18,682 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-08 04:48:18,683 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-08 04:48:18,684 INFO  L85        PathProgramCache]: Analyzing trace with hash -506984712, now seen corresponding path program 1 times
[2025-02-08 04:48:18,684 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-08 04:48:18,684 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944428639]
[2025-02-08 04:48:18,684 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-08 04:48:18,684 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-08 04:48:18,740 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 99 statements into 1 equivalence classes.
[2025-02-08 04:48:18,915 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 99 of 99 statements.
[2025-02-08 04:48:18,915 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-08 04:48:18,915 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-08 04:48:19,128 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2025-02-08 04:48:19,129 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-08 04:48:19,129 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944428639]
[2025-02-08 04:48:19,129 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944428639] provided 0 perfect and 1 imperfect interpolant sequences
[2025-02-08 04:48:19,130 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2005174514]
[2025-02-08 04:48:19,130 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-08 04:48:19,130 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-02-08 04:48:19,130 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2025-02-08 04:48:19,132 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)
[2025-02-08 04:48:19,135 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
[2025-02-08 04:48:19,350 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 99 statements into 1 equivalence classes.
[2025-02-08 04:48:19,643 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 99 of 99 statements.
[2025-02-08 04:48:19,643 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-08 04:48:19,644 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-08 04:48:19,648 INFO  L256         TraceCheckSpWp]: Trace formula consists of 583 conjuncts, 32 conjuncts are in the unsatisfiable core
[2025-02-08 04:48:19,653 INFO  L279         TraceCheckSpWp]: Computing forward predicates...