./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-33.i --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version 8fc3dc66
Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-33.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3c130d3d9fa60b2bea9bba7adbf819cbc71aada0924db06d5b1e68ee6ed3ed16
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-8fc3dc6-m
[2025-03-17 02:07:50,328 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-03-17 02:07:50,382 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2025-03-17 02:07:50,388 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-03-17 02:07:50,389 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-03-17 02:07:50,410 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-03-17 02:07:50,412 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-03-17 02:07:50,412 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-03-17 02:07:50,412 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2025-03-17 02:07:50,412 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2025-03-17 02:07:50,413 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-03-17 02:07:50,413 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-03-17 02:07:50,414 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-03-17 02:07:50,414 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-03-17 02:07:50,414 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-03-17 02:07:50,414 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2025-03-17 02:07:50,414 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2025-03-17 02:07:50,414 INFO  L153        SettingsManager]:  * sizeof long=4
[2025-03-17 02:07:50,414 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2025-03-17 02:07:50,414 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2025-03-17 02:07:50,414 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2025-03-17 02:07:50,415 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2025-03-17 02:07:50,415 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2025-03-17 02:07:50,415 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2025-03-17 02:07:50,415 INFO  L153        SettingsManager]:  * sizeof long double=12
[2025-03-17 02:07:50,415 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2025-03-17 02:07:50,415 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2025-03-17 02:07:50,415 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2025-03-17 02:07:50,415 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2025-03-17 02:07:50,415 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-03-17 02:07:50,416 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2025-03-17 02:07:50,416 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-03-17 02:07:50,416 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-03-17 02:07:50,416 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-03-17 02:07:50,416 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-03-17 02:07:50,416 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2025-03-17 02:07:50,417 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2025-03-17 02:07:50,417 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-03-17 02:07:50,417 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-03-17 02:07:50,417 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2025-03-17 02:07:50,417 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-03-17 02:07:50,417 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2025-03-17 02:07:50,417 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-03-17 02:07:50,417 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3c130d3d9fa60b2bea9bba7adbf819cbc71aada0924db06d5b1e68ee6ed3ed16
[2025-03-17 02:07:50,629 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-03-17 02:07:50,635 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-03-17 02:07:50,637 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-03-17 02:07:50,638 INFO  L270        PluginConnector]: Initializing CDTParser...
[2025-03-17 02:07:50,638 INFO  L274        PluginConnector]: CDTParser initialized
[2025-03-17 02:07:50,639 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-33.i
[2025-03-17 02:07:51,764 INFO  L533              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a8cf3fea/31e0361e0680453e81555620934891e8/FLAG94846b6d2
[2025-03-17 02:07:52,000 INFO  L384              CDTParser]: Found 1 translation units.
[2025-03-17 02:07:52,000 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-33.i
[2025-03-17 02:07:52,007 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a8cf3fea/31e0361e0680453e81555620934891e8/FLAG94846b6d2
[2025-03-17 02:07:52,328 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a8cf3fea/31e0361e0680453e81555620934891e8
[2025-03-17 02:07:52,330 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-03-17 02:07:52,331 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2025-03-17 02:07:52,332 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2025-03-17 02:07:52,332 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2025-03-17 02:07:52,335 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2025-03-17 02:07:52,336 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 02:07:52" (1/1) ...
[2025-03-17 02:07:52,336 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56a95991 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:07:52, skipping insertion in model container
[2025-03-17 02:07:52,337 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 02:07:52" (1/1) ...
[2025-03-17 02:07:52,354 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2025-03-17 02:07:52,462 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-33.i[919,932]
[2025-03-17 02:07:52,542 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-03-17 02:07:52,554 INFO  L200         MainTranslator]: Completed pre-run
[2025-03-17 02:07:52,563 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-33.i[919,932]
[2025-03-17 02:07:52,604 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-03-17 02:07:52,624 INFO  L204         MainTranslator]: Completed translation
[2025-03-17 02:07:52,625 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:07:52 WrapperNode
[2025-03-17 02:07:52,626 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2025-03-17 02:07:52,627 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2025-03-17 02:07:52,628 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2025-03-17 02:07:52,628 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2025-03-17 02:07:52,633 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:07:52" (1/1) ...
[2025-03-17 02:07:52,642 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:07:52" (1/1) ...
[2025-03-17 02:07:52,666 INFO  L138                Inliner]: procedures = 26, calls = 55, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 249
[2025-03-17 02:07:52,666 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2025-03-17 02:07:52,667 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-03-17 02:07:52,667 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-03-17 02:07:52,667 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-03-17 02:07:52,677 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:07:52" (1/1) ...
[2025-03-17 02:07:52,677 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:07:52" (1/1) ...
[2025-03-17 02:07:52,683 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:07:52" (1/1) ...
[2025-03-17 02:07:52,699 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2025-03-17 02:07:52,699 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:07:52" (1/1) ...
[2025-03-17 02:07:52,699 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:07:52" (1/1) ...
[2025-03-17 02:07:52,706 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:07:52" (1/1) ...
[2025-03-17 02:07:52,708 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:07:52" (1/1) ...
[2025-03-17 02:07:52,715 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:07:52" (1/1) ...
[2025-03-17 02:07:52,716 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:07:52" (1/1) ...
[2025-03-17 02:07:52,722 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-03-17 02:07:52,722 INFO  L112        PluginConnector]: ------------------------IcfgBuilder----------------------------
[2025-03-17 02:07:52,722 INFO  L270        PluginConnector]: Initializing IcfgBuilder...
[2025-03-17 02:07:52,723 INFO  L274        PluginConnector]: IcfgBuilder initialized
[2025-03-17 02:07:52,723 INFO  L184        PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:07:52" (1/1) ...
[2025-03-17 02:07:52,731 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-03-17 02:07:52,739 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-17 02:07:52,750 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2025-03-17 02:07:52,753 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2025-03-17 02:07:52,768 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2025-03-17 02:07:52,768 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2025-03-17 02:07:52,768 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2025-03-17 02:07:52,768 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2025-03-17 02:07:52,768 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2025-03-17 02:07:52,768 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2025-03-17 02:07:52,852 INFO  L256             CfgBuilder]: Building ICFG
[2025-03-17 02:07:52,854 INFO  L286             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-03-17 02:07:53,167 INFO  L1322  $ProcedureCfgBuilder]: dead code at ProgramPoint L200: havoc property_#t~ite27#1;havoc property_#t~bitwise26#1;
[2025-03-17 02:07:53,205 INFO  L?                        ?]: Removed 13 outVars from TransFormulas that were not future-live.
[2025-03-17 02:07:53,206 INFO  L307             CfgBuilder]: Performing block encoding
[2025-03-17 02:07:53,222 INFO  L331             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2025-03-17 02:07:53,223 INFO  L336             CfgBuilder]: Removed 0 assume(true) statements.
[2025-03-17 02:07:53,223 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 02:07:53 BoogieIcfgContainer
[2025-03-17 02:07:53,223 INFO  L131        PluginConnector]: ------------------------ END IcfgBuilder----------------------------
[2025-03-17 02:07:53,226 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-03-17 02:07:53,226 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-03-17 02:07:53,229 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-03-17 02:07:53,230 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 02:07:52" (1/3) ...
[2025-03-17 02:07:53,231 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e6b49f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 02:07:53, skipping insertion in model container
[2025-03-17 02:07:53,231 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:07:52" (2/3) ...
[2025-03-17 02:07:53,231 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e6b49f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 02:07:53, skipping insertion in model container
[2025-03-17 02:07:53,231 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 02:07:53" (3/3) ...
[2025-03-17 02:07:53,232 INFO  L128   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-cn_file-33.i
[2025-03-17 02:07:53,244 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-03-17 02:07:53,247 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodestructure_filler-ps-cn_file-33.i that has 2 procedures, 107 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2025-03-17 02:07:53,297 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-03-17 02:07:53,307 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;@12723c49, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-03-17 02:07:53,309 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-03-17 02:07:53,313 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 107 states, 62 states have (on average 1.4193548387096775) internal successors, (88), 63 states have internal predecessors, (88), 42 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42)
[2025-03-17 02:07:53,327 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 255
[2025-03-17 02:07:53,327 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-17 02:07:53,328 INFO  L218           NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-17 02:07:53,328 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-17 02:07:53,332 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-17 02:07:53,333 INFO  L85        PathProgramCache]: Analyzing trace with hash -998632985, now seen corresponding path program 1 times
[2025-03-17 02:07:53,337 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-17 02:07:53,338 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76452186]
[2025-03-17 02:07:53,338 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-17 02:07:53,338 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-17 02:07:53,420 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 254 statements into 1 equivalence classes.
[2025-03-17 02:07:53,445 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 254 of 254 statements.
[2025-03-17 02:07:53,445 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 02:07:53,445 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-17 02:07:53,662 INFO  L134       CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 82 refuted. 0 times theorem prover too weak. 3362 trivial. 0 not checked.
[2025-03-17 02:07:53,663 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-17 02:07:53,664 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76452186]
[2025-03-17 02:07:53,665 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76452186] provided 0 perfect and 1 imperfect interpolant sequences
[2025-03-17 02:07:53,665 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [497672168]
[2025-03-17 02:07:53,665 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-17 02:07:53,666 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-03-17 02:07:53,666 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-17 02:07:53,668 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2025-03-17 02:07:53,670 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2025-03-17 02:07:53,748 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 254 statements into 1 equivalence classes.
[2025-03-17 02:07:53,863 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 254 of 254 statements.
[2025-03-17 02:07:53,863 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 02:07:53,864 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-17 02:07:53,868 INFO  L256         TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 1 conjuncts are in the unsatisfiable core
[2025-03-17 02:07:53,877 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-17 02:07:53,907 INFO  L134       CoverageAnalysis]: Checked inductivity of 3444 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 3362 trivial. 0 not checked.
[2025-03-17 02:07:53,907 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2025-03-17 02:07:53,908 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [497672168] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-17 02:07:53,908 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2025-03-17 02:07:53,908 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2025-03-17 02:07:53,910 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727958450]
[2025-03-17 02:07:53,911 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-17 02:07:53,914 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2025-03-17 02:07:53,914 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-17 02:07:53,933 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2025-03-17 02:07:53,934 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2025-03-17 02:07:53,936 INFO  L87              Difference]: Start difference. First operand  has 107 states, 62 states have (on average 1.4193548387096775) internal successors, (88), 63 states have internal predecessors, (88), 42 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) Second operand  has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 2 states have call successors, (42)
[2025-03-17 02:07:53,969 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-17 02:07:53,970 INFO  L93              Difference]: Finished difference Result 209 states and 380 transitions.
[2025-03-17 02:07:53,971 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2025-03-17 02:07:53,972 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 2 states have call successors, (42) Word has length 254
[2025-03-17 02:07:53,972 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-17 02:07:53,978 INFO  L225             Difference]: With dead ends: 209
[2025-03-17 02:07:53,978 INFO  L226             Difference]: Without dead ends: 103
[2025-03-17 02:07:53,981 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2025-03-17 02:07:53,982 INFO  L435           NwaCegarLoop]: 159 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-03-17 02:07:53,983 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 159 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-03-17 02:07:53,992 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 103 states.
[2025-03-17 02:07:54,022 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103.
[2025-03-17 02:07:54,023 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 103 states, 59 states have (on average 1.305084745762712) internal successors, (77), 59 states have internal predecessors, (77), 42 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42)
[2025-03-17 02:07:54,031 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 161 transitions.
[2025-03-17 02:07:54,033 INFO  L78                 Accepts]: Start accepts. Automaton has 103 states and 161 transitions. Word has length 254
[2025-03-17 02:07:54,033 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-17 02:07:54,033 INFO  L471      AbstractCegarLoop]: Abstraction has 103 states and 161 transitions.
[2025-03-17 02:07:54,033 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 2 states have call successors, (42)
[2025-03-17 02:07:54,034 INFO  L276                IsEmpty]: Start isEmpty. Operand 103 states and 161 transitions.
[2025-03-17 02:07:54,038 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 255
[2025-03-17 02:07:54,038 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-17 02:07:54,039 INFO  L218           NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-17 02:07:54,046 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2025-03-17 02:07:54,243 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2025-03-17 02:07:54,243 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-17 02:07:54,244 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-17 02:07:54,244 INFO  L85        PathProgramCache]: Analyzing trace with hash -773275799, now seen corresponding path program 1 times
[2025-03-17 02:07:54,244 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-17 02:07:54,244 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882200533]
[2025-03-17 02:07:54,244 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-17 02:07:54,244 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-17 02:07:54,268 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 254 statements into 1 equivalence classes.
[2025-03-17 02:07:54,430 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 254 of 254 statements.
[2025-03-17 02:07:54,430 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 02:07:54,430 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-17 02:07:55,168 INFO  L134       CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked.
[2025-03-17 02:07:55,168 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-17 02:07:55,168 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882200533]
[2025-03-17 02:07:55,168 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882200533] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-17 02:07:55,168 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-17 02:07:55,168 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-17 02:07:55,168 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540836043]
[2025-03-17 02:07:55,168 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-17 02:07:55,171 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-17 02:07:55,171 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-17 02:07:55,172 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-17 02:07:55,172 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-17 02:07:55,172 INFO  L87              Difference]: Start difference. First operand 103 states and 161 transitions. Second operand  has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42)
[2025-03-17 02:07:55,507 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-17 02:07:55,507 INFO  L93              Difference]: Finished difference Result 312 states and 489 transitions.
[2025-03-17 02:07:55,508 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-17 02:07:55,508 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 254
[2025-03-17 02:07:55,509 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-17 02:07:55,511 INFO  L225             Difference]: With dead ends: 312
[2025-03-17 02:07:55,511 INFO  L226             Difference]: Without dead ends: 210
[2025-03-17 02:07:55,514 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2025-03-17 02:07:55,515 INFO  L435           NwaCegarLoop]: 143 mSDtfsCounter, 99 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2025-03-17 02:07:55,515 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 423 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2025-03-17 02:07:55,516 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 210 states.
[2025-03-17 02:07:55,541 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 196.
[2025-03-17 02:07:55,541 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 196 states, 109 states have (on average 1.2935779816513762) internal successors, (141), 109 states have internal predecessors, (141), 84 states have call successors, (84), 2 states have call predecessors, (84), 2 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84)
[2025-03-17 02:07:55,543 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 309 transitions.
[2025-03-17 02:07:55,544 INFO  L78                 Accepts]: Start accepts. Automaton has 196 states and 309 transitions. Word has length 254
[2025-03-17 02:07:55,544 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-17 02:07:55,544 INFO  L471      AbstractCegarLoop]: Abstraction has 196 states and 309 transitions.
[2025-03-17 02:07:55,545 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42)
[2025-03-17 02:07:55,545 INFO  L276                IsEmpty]: Start isEmpty. Operand 196 states and 309 transitions.
[2025-03-17 02:07:55,546 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 256
[2025-03-17 02:07:55,547 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-17 02:07:55,547 INFO  L218           NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-17 02:07:55,547 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-03-17 02:07:55,547 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-17 02:07:55,548 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-17 02:07:55,548 INFO  L85        PathProgramCache]: Analyzing trace with hash -755785602, now seen corresponding path program 1 times
[2025-03-17 02:07:55,548 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-17 02:07:55,548 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078652598]
[2025-03-17 02:07:55,548 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-17 02:07:55,548 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-17 02:07:55,562 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 255 statements into 1 equivalence classes.
[2025-03-17 02:07:55,581 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 255 of 255 statements.
[2025-03-17 02:07:55,582 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 02:07:55,582 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-17 02:07:55,779 INFO  L134       CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked.
[2025-03-17 02:07:55,780 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-17 02:07:55,780 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078652598]
[2025-03-17 02:07:55,780 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078652598] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-17 02:07:55,780 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-17 02:07:55,780 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-17 02:07:55,781 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51520723]
[2025-03-17 02:07:55,781 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-17 02:07:55,781 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-17 02:07:55,781 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-17 02:07:55,782 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-17 02:07:55,782 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-17 02:07:55,782 INFO  L87              Difference]: Start difference. First operand 196 states and 309 transitions. Second operand  has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42)
[2025-03-17 02:07:56,015 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-17 02:07:56,016 INFO  L93              Difference]: Finished difference Result 321 states and 500 transitions.
[2025-03-17 02:07:56,017 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-17 02:07:56,017 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 255
[2025-03-17 02:07:56,018 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-17 02:07:56,019 INFO  L225             Difference]: With dead ends: 321
[2025-03-17 02:07:56,021 INFO  L226             Difference]: Without dead ends: 206
[2025-03-17 02:07:56,022 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2025-03-17 02:07:56,024 INFO  L435           NwaCegarLoop]: 143 mSDtfsCounter, 96 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2025-03-17 02:07:56,024 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 428 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2025-03-17 02:07:56,025 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 206 states.
[2025-03-17 02:07:56,055 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 197.
[2025-03-17 02:07:56,059 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 197 states, 110 states have (on average 1.2818181818181817) internal successors, (141), 110 states have internal predecessors, (141), 84 states have call successors, (84), 2 states have call predecessors, (84), 2 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84)
[2025-03-17 02:07:56,061 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 309 transitions.
[2025-03-17 02:07:56,061 INFO  L78                 Accepts]: Start accepts. Automaton has 197 states and 309 transitions. Word has length 255
[2025-03-17 02:07:56,062 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-17 02:07:56,062 INFO  L471      AbstractCegarLoop]: Abstraction has 197 states and 309 transitions.
[2025-03-17 02:07:56,065 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42)
[2025-03-17 02:07:56,065 INFO  L276                IsEmpty]: Start isEmpty. Operand 197 states and 309 transitions.
[2025-03-17 02:07:56,067 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 257
[2025-03-17 02:07:56,067 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-17 02:07:56,067 INFO  L218           NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-17 02:07:56,067 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-03-17 02:07:56,067 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-17 02:07:56,067 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-17 02:07:56,068 INFO  L85        PathProgramCache]: Analyzing trace with hash 260034899, now seen corresponding path program 1 times
[2025-03-17 02:07:56,068 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-17 02:07:56,068 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369311705]
[2025-03-17 02:07:56,068 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-17 02:07:56,068 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-17 02:07:56,083 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 256 statements into 1 equivalence classes.
[2025-03-17 02:07:56,238 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 256 of 256 statements.
[2025-03-17 02:07:56,242 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 02:07:56,242 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-17 02:08:05,857 INFO  L134       CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked.
[2025-03-17 02:08:05,857 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-17 02:08:05,857 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369311705]
[2025-03-17 02:08:05,857 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369311705] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-17 02:08:05,857 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-17 02:08:05,858 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13
[2025-03-17 02:08:05,858 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165221401]
[2025-03-17 02:08:05,858 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-17 02:08:05,858 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2025-03-17 02:08:05,858 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-17 02:08:05,859 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2025-03-17 02:08:05,859 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156
[2025-03-17 02:08:05,859 INFO  L87              Difference]: Start difference. First operand 197 states and 309 transitions. Second operand  has 13 states, 13 states have (on average 3.769230769230769) internal successors, (49), 13 states have internal predecessors, (49), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42)
[2025-03-17 02:08:08,118 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-17 02:08:08,119 INFO  L93              Difference]: Finished difference Result 258 states and 380 transitions.
[2025-03-17 02:08:08,119 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2025-03-17 02:08:08,119 INFO  L78                 Accepts]: Start accepts. Automaton has  has 13 states, 13 states have (on average 3.769230769230769) internal successors, (49), 13 states have internal predecessors, (49), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 256
[2025-03-17 02:08:08,120 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-17 02:08:08,122 INFO  L225             Difference]: With dead ends: 258
[2025-03-17 02:08:08,122 INFO  L226             Difference]: Without dead ends: 256
[2025-03-17 02:08:08,122 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=148, Invalid=452, Unknown=0, NotChecked=0, Total=600
[2025-03-17 02:08:08,123 INFO  L435           NwaCegarLoop]: 137 mSDtfsCounter, 247 mSDsluCounter, 828 mSDsCounter, 0 mSdLazyCounter, 861 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 965 SdHoareTripleChecker+Invalid, 990 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2025-03-17 02:08:08,123 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 965 Invalid, 990 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 861 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2025-03-17 02:08:08,124 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 256 states.
[2025-03-17 02:08:08,144 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 211.
[2025-03-17 02:08:08,145 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 211 states, 124 states have (on average 1.2741935483870968) internal successors, (158), 124 states have internal predecessors, (158), 84 states have call successors, (84), 2 states have call predecessors, (84), 2 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84)
[2025-03-17 02:08:08,146 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 326 transitions.
[2025-03-17 02:08:08,146 INFO  L78                 Accepts]: Start accepts. Automaton has 211 states and 326 transitions. Word has length 256
[2025-03-17 02:08:08,147 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-17 02:08:08,147 INFO  L471      AbstractCegarLoop]: Abstraction has 211 states and 326 transitions.
[2025-03-17 02:08:08,147 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 13 states, 13 states have (on average 3.769230769230769) internal successors, (49), 13 states have internal predecessors, (49), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42)
[2025-03-17 02:08:08,147 INFO  L276                IsEmpty]: Start isEmpty. Operand 211 states and 326 transitions.
[2025-03-17 02:08:08,149 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 257
[2025-03-17 02:08:08,149 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-17 02:08:08,149 INFO  L218           NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-17 02:08:08,149 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-03-17 02:08:08,150 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-17 02:08:08,150 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-17 02:08:08,150 INFO  L85        PathProgramCache]: Analyzing trace with hash 63521394, now seen corresponding path program 1 times
[2025-03-17 02:08:08,150 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-17 02:08:08,150 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999359658]
[2025-03-17 02:08:08,150 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-17 02:08:08,150 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-17 02:08:08,162 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 256 statements into 1 equivalence classes.
[2025-03-17 02:08:08,279 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 256 of 256 statements.
[2025-03-17 02:08:08,279 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 02:08:08,279 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-17 02:08:08,453 INFO  L134       CoverageAnalysis]: Checked inductivity of 3444 backedges. 87 proven. 36 refuted. 0 times theorem prover too weak. 3321 trivial. 0 not checked.
[2025-03-17 02:08:08,453 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-17 02:08:08,453 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999359658]
[2025-03-17 02:08:08,453 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999359658] provided 0 perfect and 1 imperfect interpolant sequences
[2025-03-17 02:08:08,454 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [574885887]
[2025-03-17 02:08:08,454 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-17 02:08:08,454 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-03-17 02:08:08,454 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-17 02:08:08,456 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2025-03-17 02:08:08,457 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2025-03-17 02:08:08,507 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 256 statements into 1 equivalence classes.
[2025-03-17 02:08:08,561 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 256 of 256 statements.
[2025-03-17 02:08:08,561 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 02:08:08,561 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-17 02:08:08,565 INFO  L256         TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 6 conjuncts are in the unsatisfiable core
[2025-03-17 02:08:08,573 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-17 02:08:08,707 INFO  L134       CoverageAnalysis]: Checked inductivity of 3444 backedges. 1491 proven. 36 refuted. 0 times theorem prover too weak. 1917 trivial. 0 not checked.
[2025-03-17 02:08:08,708 INFO  L312         TraceCheckSpWp]: Computing backward predicates...
[2025-03-17 02:08:08,883 INFO  L134       CoverageAnalysis]: Checked inductivity of 3444 backedges. 87 proven. 36 refuted. 0 times theorem prover too weak. 3321 trivial. 0 not checked.
[2025-03-17 02:08:08,884 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [574885887] provided 0 perfect and 2 imperfect interpolant sequences
[2025-03-17 02:08:08,884 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2025-03-17 02:08:08,884 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8
[2025-03-17 02:08:08,884 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245739817]
[2025-03-17 02:08:08,884 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2025-03-17 02:08:08,885 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2025-03-17 02:08:08,885 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-17 02:08:08,885 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2025-03-17 02:08:08,885 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2025-03-17 02:08:08,886 INFO  L87              Difference]: Start difference. First operand 211 states and 326 transitions. Second operand  has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 3 states have call successors, (66), 2 states have call predecessors, (66), 4 states have return successors, (67), 3 states have call predecessors, (67), 3 states have call successors, (67)
[2025-03-17 02:08:09,084 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-17 02:08:09,084 INFO  L93              Difference]: Finished difference Result 357 states and 538 transitions.
[2025-03-17 02:08:09,086 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2025-03-17 02:08:09,086 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 3 states have call successors, (66), 2 states have call predecessors, (66), 4 states have return successors, (67), 3 states have call predecessors, (67), 3 states have call successors, (67) Word has length 256
[2025-03-17 02:08:09,087 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-17 02:08:09,088 INFO  L225             Difference]: With dead ends: 357
[2025-03-17 02:08:09,089 INFO  L226             Difference]: Without dead ends: 223
[2025-03-17 02:08:09,089 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 518 GetRequests, 509 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=64, Unknown=0, NotChecked=0, Total=110
[2025-03-17 02:08:09,090 INFO  L435           NwaCegarLoop]: 111 mSDtfsCounter, 150 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2025-03-17 02:08:09,090 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 248 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2025-03-17 02:08:09,090 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 223 states.
[2025-03-17 02:08:09,111 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 219.
[2025-03-17 02:08:09,112 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 219 states, 130 states have (on average 1.2461538461538462) internal successors, (162), 130 states have internal predecessors, (162), 84 states have call successors, (84), 4 states have call predecessors, (84), 4 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84)
[2025-03-17 02:08:09,114 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 330 transitions.
[2025-03-17 02:08:09,115 INFO  L78                 Accepts]: Start accepts. Automaton has 219 states and 330 transitions. Word has length 256
[2025-03-17 02:08:09,115 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-17 02:08:09,117 INFO  L471      AbstractCegarLoop]: Abstraction has 219 states and 330 transitions.
[2025-03-17 02:08:09,117 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 3 states have call successors, (66), 2 states have call predecessors, (66), 4 states have return successors, (67), 3 states have call predecessors, (67), 3 states have call successors, (67)
[2025-03-17 02:08:09,117 INFO  L276                IsEmpty]: Start isEmpty. Operand 219 states and 330 transitions.
[2025-03-17 02:08:09,119 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 258
[2025-03-17 02:08:09,119 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-17 02:08:09,119 INFO  L218           NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-17 02:08:09,127 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2025-03-17 02:08:09,320 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-03-17 02:08:09,320 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-17 02:08:09,320 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-17 02:08:09,321 INFO  L85        PathProgramCache]: Analyzing trace with hash 325910025, now seen corresponding path program 1 times
[2025-03-17 02:08:09,321 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-17 02:08:09,321 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194862251]
[2025-03-17 02:08:09,321 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-17 02:08:09,321 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-17 02:08:09,330 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 257 statements into 1 equivalence classes.
[2025-03-17 02:08:09,402 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 257 of 257 statements.
[2025-03-17 02:08:09,402 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 02:08:09,402 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-17 02:08:13,156 INFO  L134       CoverageAnalysis]: Checked inductivity of 3444 backedges. 6 proven. 117 refuted. 0 times theorem prover too weak. 3321 trivial. 0 not checked.
[2025-03-17 02:08:13,156 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-17 02:08:13,156 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194862251]
[2025-03-17 02:08:13,156 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194862251] provided 0 perfect and 1 imperfect interpolant sequences
[2025-03-17 02:08:13,156 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1840824581]
[2025-03-17 02:08:13,156 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-17 02:08:13,156 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-03-17 02:08:13,156 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-17 02:08:13,158 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2025-03-17 02:08:13,159 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2025-03-17 02:08:13,208 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 257 statements into 1 equivalence classes.
[2025-03-17 02:08:13,257 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 257 of 257 statements.
[2025-03-17 02:08:13,257 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-17 02:08:13,258 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-17 02:08:13,259 INFO  L256         TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 42 conjuncts are in the unsatisfiable core
[2025-03-17 02:08:13,266 INFO  L279         TraceCheckSpWp]: Computing forward predicates...