./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.3.prop1-func-interl.c --full-output --architecture 64bit


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


Checking for ERROR reachability
Using default analysis
Version 798a7b37
Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.3.prop1-func-interl.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash a10e0f33753cb095900e9272f8c4b5a4de145c52f67cb793ee2a7056ed745d06
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-798a7b3-m
[2025-03-03 18:22:53,426 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-03-03 18:22:53,473 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf
[2025-03-03 18:22:53,476 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-03-03 18:22:53,477 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-03-03 18:22:53,490 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-03-03 18:22:53,491 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-03-03 18:22:53,491 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-03-03 18:22:53,491 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2025-03-03 18:22:53,492 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2025-03-03 18:22:53,492 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-03-03 18:22:53,492 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-03-03 18:22:53,492 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-03-03 18:22:53,492 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-03-03 18:22:53,492 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-03-03 18:22:53,492 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2025-03-03 18:22:53,492 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2025-03-03 18:22:53,493 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2025-03-03 18:22:53,493 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2025-03-03 18:22:53,493 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2025-03-03 18:22:53,494 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2025-03-03 18:22:53,494 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2025-03-03 18:22:53,494 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2025-03-03 18:22:53,494 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2025-03-03 18:22:53,494 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2025-03-03 18:22:53,494 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2025-03-03 18:22:53,494 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-03-03 18:22:53,494 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2025-03-03 18:22:53,494 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-03-03 18:22:53,494 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-03-03 18:22:53,495 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-03-03 18:22:53,495 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-03-03 18:22:53,495 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2025-03-03 18:22:53,495 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2025-03-03 18:22:53,495 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-03-03 18:22:53,495 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-03-03 18:22:53,495 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2025-03-03 18:22:53,495 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-03-03 18:22:53,496 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2025-03-03 18:22:53,496 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-03-03 18:22:53,496 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 -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a10e0f33753cb095900e9272f8c4b5a4de145c52f67cb793ee2a7056ed745d06
[2025-03-03 18:22:53,746 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-03-03 18:22:53,754 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-03-03 18:22:53,756 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-03-03 18:22:53,757 INFO  L270        PluginConnector]: Initializing CDTParser...
[2025-03-03 18:22:53,757 INFO  L274        PluginConnector]: CDTParser initialized
[2025-03-03 18:22:53,758 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.3.prop1-func-interl.c
[2025-03-03 18:22:54,954 INFO  L533              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5908c63e9/cff8775acd4c48acb693282d886360a6/FLAGa96d7f1d6
[2025-03-03 18:22:55,361 INFO  L384              CDTParser]: Found 1 translation units.
[2025-03-03 18:22:55,362 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.3.prop1-func-interl.c
[2025-03-03 18:22:55,393 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5908c63e9/cff8775acd4c48acb693282d886360a6/FLAGa96d7f1d6
[2025-03-03 18:22:55,409 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5908c63e9/cff8775acd4c48acb693282d886360a6
[2025-03-03 18:22:55,414 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-03-03 18:22:55,415 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2025-03-03 18:22:55,416 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2025-03-03 18:22:55,416 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2025-03-03 18:22:55,420 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2025-03-03 18:22:55,421 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 06:22:55" (1/1) ...
[2025-03-03 18:22:55,423 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1747f7e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:22:55, skipping insertion in model container
[2025-03-03 18:22:55,423 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 06:22:55" (1/1) ...
[2025-03-03 18:22:55,492 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2025-03-03 18:22:55,680 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/hardware-verification-bv/btor2c-lazyMod.telephony.3.prop1-func-interl.c[1176,1189]
[2025-03-03 18:22:56,252 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-03-03 18:22:56,259 INFO  L200         MainTranslator]: Completed pre-run
[2025-03-03 18:22:56,267 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/hardware-verification-bv/btor2c-lazyMod.telephony.3.prop1-func-interl.c[1176,1189]
[2025-03-03 18:22:56,586 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-03-03 18:22:56,597 INFO  L204         MainTranslator]: Completed translation
[2025-03-03 18:22:56,598 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:22:56 WrapperNode
[2025-03-03 18:22:56,599 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2025-03-03 18:22:56,600 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2025-03-03 18:22:56,600 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2025-03-03 18:22:56,600 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2025-03-03 18:22:56,605 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:22:56" (1/1) ...
[2025-03-03 18:22:56,678 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:22:56" (1/1) ...
[2025-03-03 18:22:57,990 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 18383
[2025-03-03 18:22:57,990 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2025-03-03 18:22:57,996 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-03-03 18:22:57,996 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-03-03 18:22:57,996 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-03-03 18:22:58,008 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:22:56" (1/1) ...
[2025-03-03 18:22:58,008 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:22:56" (1/1) ...
[2025-03-03 18:22:58,400 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:22:56" (1/1) ...
[2025-03-03 18:22:58,593 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].
[2025-03-03 18:22:58,593 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:22:56" (1/1) ...
[2025-03-03 18:22:58,594 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:22:56" (1/1) ...
[2025-03-03 18:22:58,993 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:22:56" (1/1) ...
[2025-03-03 18:22:59,040 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:22:56" (1/1) ...
[2025-03-03 18:22:59,099 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:22:56" (1/1) ...
[2025-03-03 18:22:59,146 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:22:56" (1/1) ...
[2025-03-03 18:22:59,327 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-03-03 18:22:59,329 INFO  L112        PluginConnector]: ------------------------IcfgBuilder----------------------------
[2025-03-03 18:22:59,329 INFO  L270        PluginConnector]: Initializing IcfgBuilder...
[2025-03-03 18:22:59,329 INFO  L274        PluginConnector]: IcfgBuilder initialized
[2025-03-03 18:22:59,330 INFO  L184        PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:22:56" (1/1) ...
[2025-03-03 18:22:59,334 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-03-03 18:22:59,343 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-03 18:22:59,354 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2025-03-03 18:22:59,356 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2025-03-03 18:22:59,378 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2025-03-03 18:22:59,378 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2025-03-03 18:22:59,378 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2025-03-03 18:22:59,378 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2025-03-03 18:23:00,197 INFO  L256             CfgBuilder]: Building ICFG
[2025-03-03 18:23:00,198 INFO  L286             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-03-03 18:23:34,136 INFO  L?                        ?]: Removed 10374 outVars from TransFormulas that were not future-live.
[2025-03-03 18:23:34,136 INFO  L307             CfgBuilder]: Performing block encoding
[2025-03-03 18:23:34,682 INFO  L331             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2025-03-03 18:23:34,683 INFO  L336             CfgBuilder]: Removed 0 assume(true) statements.
[2025-03-03 18:23:34,683 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 06:23:34 BoogieIcfgContainer
[2025-03-03 18:23:34,684 INFO  L131        PluginConnector]: ------------------------ END IcfgBuilder----------------------------
[2025-03-03 18:23:34,686 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-03-03 18:23:34,686 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-03-03 18:23:34,689 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-03-03 18:23:34,690 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 06:22:55" (1/3) ...
[2025-03-03 18:23:34,691 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69cee4fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 06:23:34, skipping insertion in model container
[2025-03-03 18:23:34,691 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:22:56" (2/3) ...
[2025-03-03 18:23:34,691 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69cee4fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 06:23:34, skipping insertion in model container
[2025-03-03 18:23:34,691 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 06:23:34" (3/3) ...
[2025-03-03 18:23:34,692 INFO  L128   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.telephony.3.prop1-func-interl.c
[2025-03-03 18:23:34,705 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-03-03 18:23:34,706 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.telephony.3.prop1-func-interl.c that has 1 procedures, 6486 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2025-03-03 18:23:34,832 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-03-03 18:23:34,840 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;@40bc4533, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-03-03 18:23:34,841 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-03-03 18:23:34,857 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 6486 states, 6484 states have (on average 1.5044725478099938) internal successors, (9755), 6485 states have internal predecessors, (9755), 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)
[2025-03-03 18:23:34,869 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 260
[2025-03-03 18:23:34,869 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 18:23:34,870 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-03 18:23:34,871 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 18:23:34,876 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 18:23:34,877 INFO  L85        PathProgramCache]: Analyzing trace with hash 1227553835, now seen corresponding path program 1 times
[2025-03-03 18:23:34,882 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 18:23:34,882 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189188522]
[2025-03-03 18:23:34,882 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 18:23:34,883 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 18:23:35,020 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 259 statements into 1 equivalence classes.
[2025-03-03 18:23:35,162 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 259 of 259 statements.
[2025-03-03 18:23:35,163 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 18:23:35,164 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 18:23:35,970 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-03 18:23:35,971 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 18:23:35,971 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189188522]
[2025-03-03 18:23:35,972 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189188522] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-03 18:23:35,972 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-03 18:23:35,972 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-03 18:23:35,973 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442567065]
[2025-03-03 18:23:35,973 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-03 18:23:35,977 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-03 18:23:35,977 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 18:23:36,100 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-03 18:23:36,101 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-03 18:23:36,113 INFO  L87              Difference]: Start difference. First operand  has 6486 states, 6484 states have (on average 1.5044725478099938) internal successors, (9755), 6485 states have internal predecessors, (9755), 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) Second operand  has 4 states, 4 states have (on average 64.75) internal successors, (259), 4 states have internal predecessors, (259), 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)
[2025-03-03 18:23:38,749 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-03 18:23:38,750 INFO  L93              Difference]: Finished difference Result 12725 states and 19143 transitions.
[2025-03-03 18:23:38,752 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-03 18:23:38,753 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 64.75) internal successors, (259), 4 states have internal predecessors, (259), 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 259
[2025-03-03 18:23:38,754 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-03 18:23:38,790 INFO  L225             Difference]: With dead ends: 12725
[2025-03-03 18:23:38,790 INFO  L226             Difference]: Without dead ends: 6485
[2025-03-03 18:23:38,801 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-03 18:23:38,802 INFO  L435           NwaCegarLoop]: 8145 mSDtfsCounter, 0 mSDsluCounter, 16285 mSDsCounter, 0 mSdLazyCounter, 4822 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24430 SdHoareTripleChecker+Invalid, 4822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time
[2025-03-03 18:23:38,803 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24430 Invalid, 4822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4822 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time]
[2025-03-03 18:23:38,821 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6485 states.
[2025-03-03 18:23:38,950 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6485 to 6485.
[2025-03-03 18:23:38,961 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6485 states, 6484 states have (on average 1.5041640962368907) internal successors, (9753), 6484 states have internal predecessors, (9753), 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)
[2025-03-03 18:23:38,979 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6485 states to 6485 states and 9753 transitions.
[2025-03-03 18:23:38,980 INFO  L78                 Accepts]: Start accepts. Automaton has 6485 states and 9753 transitions. Word has length 259
[2025-03-03 18:23:38,981 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-03 18:23:38,981 INFO  L471      AbstractCegarLoop]: Abstraction has 6485 states and 9753 transitions.
[2025-03-03 18:23:38,981 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 64.75) internal successors, (259), 4 states have internal predecessors, (259), 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)
[2025-03-03 18:23:38,981 INFO  L276                IsEmpty]: Start isEmpty. Operand 6485 states and 9753 transitions.
[2025-03-03 18:23:38,984 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 261
[2025-03-03 18:23:38,985 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 18:23:38,985 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-03 18:23:38,985 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2025-03-03 18:23:38,985 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 18:23:38,986 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 18:23:38,986 INFO  L85        PathProgramCache]: Analyzing trace with hash -595847175, now seen corresponding path program 1 times
[2025-03-03 18:23:38,986 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 18:23:38,986 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608537689]
[2025-03-03 18:23:38,986 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 18:23:38,987 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 18:23:39,056 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 260 statements into 1 equivalence classes.
[2025-03-03 18:23:39,092 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 260 of 260 statements.
[2025-03-03 18:23:39,092 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 18:23:39,092 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 18:23:39,382 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-03 18:23:39,383 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 18:23:39,383 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608537689]
[2025-03-03 18:23:39,383 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608537689] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-03 18:23:39,383 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-03 18:23:39,383 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-03 18:23:39,383 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298793601]
[2025-03-03 18:23:39,383 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-03 18:23:39,384 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-03 18:23:39,384 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 18:23:39,385 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-03 18:23:39,385 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-03 18:23:39,385 INFO  L87              Difference]: Start difference. First operand 6485 states and 9753 transitions. Second operand  has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 states have internal predecessors, (260), 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)
[2025-03-03 18:23:41,929 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-03 18:23:41,930 INFO  L93              Difference]: Finished difference Result 12726 states and 19141 transitions.
[2025-03-03 18:23:41,930 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-03 18:23:41,930 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 states have internal predecessors, (260), 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 260
[2025-03-03 18:23:41,931 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-03 18:23:41,952 INFO  L225             Difference]: With dead ends: 12726
[2025-03-03 18:23:41,953 INFO  L226             Difference]: Without dead ends: 6487
[2025-03-03 18:23:41,961 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-03 18:23:41,962 INFO  L435           NwaCegarLoop]: 8145 mSDtfsCounter, 0 mSDsluCounter, 16282 mSDsCounter, 0 mSdLazyCounter, 4825 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24427 SdHoareTripleChecker+Invalid, 4825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time
[2025-03-03 18:23:41,963 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24427 Invalid, 4825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4825 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time]
[2025-03-03 18:23:41,973 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6487 states.
[2025-03-03 18:23:42,064 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6487 to 6487.
[2025-03-03 18:23:42,079 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6487 states, 6486 states have (on average 1.5040086339808818) internal successors, (9755), 6486 states have internal predecessors, (9755), 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)
[2025-03-03 18:23:42,093 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6487 states to 6487 states and 9755 transitions.
[2025-03-03 18:23:42,093 INFO  L78                 Accepts]: Start accepts. Automaton has 6487 states and 9755 transitions. Word has length 260
[2025-03-03 18:23:42,093 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-03 18:23:42,094 INFO  L471      AbstractCegarLoop]: Abstraction has 6487 states and 9755 transitions.
[2025-03-03 18:23:42,094 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 states have internal predecessors, (260), 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)
[2025-03-03 18:23:42,094 INFO  L276                IsEmpty]: Start isEmpty. Operand 6487 states and 9755 transitions.
[2025-03-03 18:23:42,096 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 262
[2025-03-03 18:23:42,096 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 18:23:42,096 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-03 18:23:42,096 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-03-03 18:23:42,096 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 18:23:42,097 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 18:23:42,097 INFO  L85        PathProgramCache]: Analyzing trace with hash 640126438, now seen corresponding path program 1 times
[2025-03-03 18:23:42,097 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 18:23:42,097 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413174430]
[2025-03-03 18:23:42,097 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 18:23:42,097 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 18:23:42,156 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 261 statements into 1 equivalence classes.
[2025-03-03 18:23:42,184 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 261 of 261 statements.
[2025-03-03 18:23:42,184 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 18:23:42,184 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 18:23:42,589 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-03 18:23:42,589 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 18:23:42,589 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413174430]
[2025-03-03 18:23:42,589 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413174430] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-03 18:23:42,589 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-03 18:23:42,589 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-03 18:23:42,589 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781508391]
[2025-03-03 18:23:42,589 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-03 18:23:42,589 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-03 18:23:42,590 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 18:23:42,590 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-03 18:23:42,590 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-03 18:23:42,590 INFO  L87              Difference]: Start difference. First operand 6487 states and 9755 transitions. Second operand  has 4 states, 4 states have (on average 65.25) internal successors, (261), 4 states have internal predecessors, (261), 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)
[2025-03-03 18:23:44,949 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-03 18:23:44,949 INFO  L93              Difference]: Finished difference Result 12730 states and 19145 transitions.
[2025-03-03 18:23:44,949 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-03 18:23:44,950 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 65.25) internal successors, (261), 4 states have internal predecessors, (261), 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 261
[2025-03-03 18:23:44,950 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-03 18:23:44,968 INFO  L225             Difference]: With dead ends: 12730
[2025-03-03 18:23:44,968 INFO  L226             Difference]: Without dead ends: 6489
[2025-03-03 18:23:44,976 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-03 18:23:44,976 INFO  L435           NwaCegarLoop]: 8145 mSDtfsCounter, 0 mSDsluCounter, 16277 mSDsCounter, 0 mSdLazyCounter, 4830 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24422 SdHoareTripleChecker+Invalid, 4830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time
[2025-03-03 18:23:44,978 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24422 Invalid, 4830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4830 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time]
[2025-03-03 18:23:44,986 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6489 states.
[2025-03-03 18:23:45,061 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6489 to 6489.
[2025-03-03 18:23:45,069 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6489 states, 6488 states have (on average 1.5038532675709002) internal successors, (9757), 6488 states have internal predecessors, (9757), 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)
[2025-03-03 18:23:45,082 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6489 states to 6489 states and 9757 transitions.
[2025-03-03 18:23:45,083 INFO  L78                 Accepts]: Start accepts. Automaton has 6489 states and 9757 transitions. Word has length 261
[2025-03-03 18:23:45,083 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-03 18:23:45,083 INFO  L471      AbstractCegarLoop]: Abstraction has 6489 states and 9757 transitions.
[2025-03-03 18:23:45,083 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 65.25) internal successors, (261), 4 states have internal predecessors, (261), 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)
[2025-03-03 18:23:45,083 INFO  L276                IsEmpty]: Start isEmpty. Operand 6489 states and 9757 transitions.
[2025-03-03 18:23:45,085 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 263
[2025-03-03 18:23:45,085 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 18:23:45,086 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-03 18:23:45,086 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-03-03 18:23:45,086 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 18:23:45,087 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 18:23:45,087 INFO  L85        PathProgramCache]: Analyzing trace with hash 257456062, now seen corresponding path program 1 times
[2025-03-03 18:23:45,087 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 18:23:45,087 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792176524]
[2025-03-03 18:23:45,087 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 18:23:45,087 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 18:23:45,145 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 262 statements into 1 equivalence classes.
[2025-03-03 18:23:45,169 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 262 of 262 statements.
[2025-03-03 18:23:45,169 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 18:23:45,169 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 18:23:45,511 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-03 18:23:45,512 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 18:23:45,512 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792176524]
[2025-03-03 18:23:45,512 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792176524] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-03 18:23:45,512 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-03 18:23:45,512 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-03-03 18:23:45,512 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949733744]
[2025-03-03 18:23:45,512 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-03 18:23:45,513 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-03-03 18:23:45,513 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 18:23:45,513 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-03-03 18:23:45,513 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2025-03-03 18:23:45,514 INFO  L87              Difference]: Start difference. First operand 6489 states and 9757 transitions. Second operand  has 5 states, 5 states have (on average 52.4) internal successors, (262), 5 states have internal predecessors, (262), 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)
[2025-03-03 18:23:49,015 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-03 18:23:49,015 INFO  L93              Difference]: Finished difference Result 18041 states and 27136 transitions.
[2025-03-03 18:23:49,015 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2025-03-03 18:23:49,016 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 52.4) internal successors, (262), 5 states have internal predecessors, (262), 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 262
[2025-03-03 18:23:49,020 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-03 18:23:49,065 INFO  L225             Difference]: With dead ends: 18041
[2025-03-03 18:23:49,065 INFO  L226             Difference]: Without dead ends: 11798
[2025-03-03 18:23:49,072 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2025-03-03 18:23:49,074 INFO  L435           NwaCegarLoop]: 8141 mSDtfsCounter, 8107 mSDsluCounter, 24112 mSDsCounter, 0 mSdLazyCounter, 6384 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8107 SdHoareTripleChecker+Valid, 32253 SdHoareTripleChecker+Invalid, 6384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time
[2025-03-03 18:23:49,074 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [8107 Valid, 32253 Invalid, 6384 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 6384 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time]
[2025-03-03 18:23:49,098 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11798 states.
[2025-03-03 18:23:49,252 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11798 to 6745.
[2025-03-03 18:23:49,276 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6745 states, 6744 states have (on average 1.5037069988137604) internal successors, (10141), 6744 states have internal predecessors, (10141), 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)
[2025-03-03 18:23:49,296 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6745 states to 6745 states and 10141 transitions.
[2025-03-03 18:23:49,296 INFO  L78                 Accepts]: Start accepts. Automaton has 6745 states and 10141 transitions. Word has length 262
[2025-03-03 18:23:49,297 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-03 18:23:49,297 INFO  L471      AbstractCegarLoop]: Abstraction has 6745 states and 10141 transitions.
[2025-03-03 18:23:49,297 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 52.4) internal successors, (262), 5 states have internal predecessors, (262), 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)
[2025-03-03 18:23:49,297 INFO  L276                IsEmpty]: Start isEmpty. Operand 6745 states and 10141 transitions.
[2025-03-03 18:23:49,567 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3322
[2025-03-03 18:23:49,567 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 18:23:49,569 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-03 18:23:49,569 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-03-03 18:23:49,569 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 18:23:49,571 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 18:23:49,572 INFO  L85        PathProgramCache]: Analyzing trace with hash 1587460478, now seen corresponding path program 1 times
[2025-03-03 18:23:49,572 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 18:23:49,572 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297334182]
[2025-03-03 18:23:49,572 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 18:23:49,572 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 18:23:49,902 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3321 statements into 1 equivalence classes.
[2025-03-03 18:23:53,590 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3321 of 3321 statements.
[2025-03-03 18:23:53,590 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 18:23:53,590 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 18:23:58,980 INFO  L134       CoverageAnalysis]: Checked inductivity of 134 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-03 18:23:58,980 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 18:23:58,980 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297334182]
[2025-03-03 18:23:58,980 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297334182] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-03 18:23:58,980 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-03 18:23:58,980 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-03 18:23:58,980 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891328873]
[2025-03-03 18:23:58,980 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-03 18:23:58,984 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-03 18:23:58,984 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 18:23:58,986 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-03 18:23:58,986 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-03 18:23:58,987 INFO  L87              Difference]: Start difference. First operand 6745 states and 10141 transitions. Second operand  has 4 states, 4 states have (on average 830.25) internal successors, (3321), 4 states have internal predecessors, (3321), 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)
[2025-03-03 18:24:00,820 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-03 18:24:00,820 INFO  L93              Difference]: Finished difference Result 12988 states and 19530 transitions.
[2025-03-03 18:24:00,820 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-03 18:24:00,821 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 830.25) internal successors, (3321), 4 states have internal predecessors, (3321), 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 3321
[2025-03-03 18:24:00,822 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-03 18:24:00,831 INFO  L225             Difference]: With dead ends: 12988
[2025-03-03 18:24:00,831 INFO  L226             Difference]: Without dead ends: 6745
[2025-03-03 18:24:00,836 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2025-03-03 18:24:00,838 INFO  L435           NwaCegarLoop]: 8110 mSDtfsCounter, 9495 mSDsluCounter, 8108 mSDsCounter, 0 mSdLazyCounter, 3279 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9495 SdHoareTripleChecker+Valid, 16218 SdHoareTripleChecker+Invalid, 3279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time
[2025-03-03 18:24:00,838 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [9495 Valid, 16218 Invalid, 3279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3279 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time]
[2025-03-03 18:24:00,846 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6745 states.
[2025-03-03 18:24:00,904 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6745 to 6745.
[2025-03-03 18:24:00,911 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6745 states, 6744 states have (on average 1.50355871886121) internal successors, (10140), 6744 states have internal predecessors, (10140), 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)
[2025-03-03 18:24:00,918 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6745 states to 6745 states and 10140 transitions.
[2025-03-03 18:24:00,919 INFO  L78                 Accepts]: Start accepts. Automaton has 6745 states and 10140 transitions. Word has length 3321
[2025-03-03 18:24:00,919 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-03 18:24:00,919 INFO  L471      AbstractCegarLoop]: Abstraction has 6745 states and 10140 transitions.
[2025-03-03 18:24:00,920 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 830.25) internal successors, (3321), 4 states have internal predecessors, (3321), 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)
[2025-03-03 18:24:00,921 INFO  L276                IsEmpty]: Start isEmpty. Operand 6745 states and 10140 transitions.
[2025-03-03 18:24:01,014 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3323
[2025-03-03 18:24:01,014 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 18:24:01,015 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2025-03-03 18:24:01,016 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2025-03-03 18:24:01,016 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 18:24:01,018 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 18:24:01,019 INFO  L85        PathProgramCache]: Analyzing trace with hash 1100101034, now seen corresponding path program 1 times
[2025-03-03 18:24:01,019 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 18:24:01,019 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123851113]
[2025-03-03 18:24:01,019 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 18:24:01,019 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 18:24:01,302 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3322 statements into 1 equivalence classes.
[2025-03-03 18:24:03,563 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3322 of 3322 statements.
[2025-03-03 18:24:03,563 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 18:24:03,564 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat