./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.iprotocol.2.prop1-back-serstep.c --full-output --architecture 64bit


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


Checking for ERROR reachability
Using default analysis
Version c00e63dc
Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.iprotocol.2.prop1-back-serstep.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b08cb245b1ebb8358bda5eb436bd624ee6051a6d0059cc1e949bca245aa6cc59
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-c00e63d-m
[2025-02-05 19:16:37,052 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-02-05 19:16:37,109 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf
[2025-02-05 19:16:37,112 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-02-05 19:16:37,113 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-02-05 19:16:37,135 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-02-05 19:16:37,136 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-02-05 19:16:37,136 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-02-05 19:16:37,136 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2025-02-05 19:16:37,136 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2025-02-05 19:16:37,136 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-02-05 19:16:37,136 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-02-05 19:16:37,137 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-02-05 19:16:37,137 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-02-05 19:16:37,137 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-02-05 19:16:37,137 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2025-02-05 19:16:37,137 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2025-02-05 19:16:37,137 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2025-02-05 19:16:37,137 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2025-02-05 19:16:37,137 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2025-02-05 19:16:37,137 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2025-02-05 19:16:37,137 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2025-02-05 19:16:37,137 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2025-02-05 19:16:37,137 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2025-02-05 19:16:37,137 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2025-02-05 19:16:37,137 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2025-02-05 19:16:37,137 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-02-05 19:16:37,137 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2025-02-05 19:16:37,137 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-02-05 19:16:37,138 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-02-05 19:16:37,138 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-02-05 19:16:37,138 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-02-05 19:16:37,138 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2025-02-05 19:16:37,138 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2025-02-05 19:16:37,138 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-02-05 19:16:37,138 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-02-05 19:16:37,138 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2025-02-05 19:16:37,138 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-02-05 19:16:37,138 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2025-02-05 19:16:37,138 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-02-05 19:16:37,138 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b08cb245b1ebb8358bda5eb436bd624ee6051a6d0059cc1e949bca245aa6cc59
[2025-02-05 19:16:37,393 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-02-05 19:16:37,402 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-02-05 19:16:37,405 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-02-05 19:16:37,406 INFO  L270        PluginConnector]: Initializing CDTParser...
[2025-02-05 19:16:37,406 INFO  L274        PluginConnector]: CDTParser initialized
[2025-02-05 19:16:37,407 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.iprotocol.2.prop1-back-serstep.c
[2025-02-05 19:16:38,678 INFO  L533              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1ba1b13cc/94eeb30b7eb64d9199fa04451c302014/FLAG1002865b3
[2025-02-05 19:16:39,079 INFO  L384              CDTParser]: Found 1 translation units.
[2025-02-05 19:16:39,080 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.iprotocol.2.prop1-back-serstep.c
[2025-02-05 19:16:39,100 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1ba1b13cc/94eeb30b7eb64d9199fa04451c302014/FLAG1002865b3
[2025-02-05 19:16:39,113 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1ba1b13cc/94eeb30b7eb64d9199fa04451c302014
[2025-02-05 19:16:39,116 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-02-05 19:16:39,117 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2025-02-05 19:16:39,118 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2025-02-05 19:16:39,118 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2025-02-05 19:16:39,121 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2025-02-05 19:16:39,122 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 07:16:39" (1/1) ...
[2025-02-05 19:16:39,124 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cf32be2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 07:16:39, skipping insertion in model container
[2025-02-05 19:16:39,124 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 07:16:39" (1/1) ...
[2025-02-05 19:16:39,176 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2025-02-05 19:16:39,335 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.iprotocol.2.prop1-back-serstep.c[1177,1190]
[2025-02-05 19:16:39,731 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-02-05 19:16:39,738 INFO  L200         MainTranslator]: Completed pre-run
[2025-02-05 19:16:39,746 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.iprotocol.2.prop1-back-serstep.c[1177,1190]
[2025-02-05 19:16:39,981 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-02-05 19:16:39,993 INFO  L204         MainTranslator]: Completed translation
[2025-02-05 19:16:39,994 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 07:16:39 WrapperNode
[2025-02-05 19:16:39,994 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2025-02-05 19:16:39,995 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2025-02-05 19:16:39,995 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2025-02-05 19:16:39,995 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2025-02-05 19:16:39,999 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 07:16:39" (1/1) ...
[2025-02-05 19:16:40,059 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 07:16:39" (1/1) ...
[2025-02-05 19:16:40,837 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 10267
[2025-02-05 19:16:40,838 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2025-02-05 19:16:40,838 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-02-05 19:16:40,838 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-02-05 19:16:40,838 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-02-05 19:16:40,845 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 07:16:39" (1/1) ...
[2025-02-05 19:16:40,845 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 07:16:39" (1/1) ...
[2025-02-05 19:16:40,951 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 07:16:39" (1/1) ...
[2025-02-05 19:16:41,184 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].
[2025-02-05 19:16:41,184 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 07:16:39" (1/1) ...
[2025-02-05 19:16:41,184 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 07:16:39" (1/1) ...
[2025-02-05 19:16:41,470 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 07:16:39" (1/1) ...
[2025-02-05 19:16:41,529 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 07:16:39" (1/1) ...
[2025-02-05 19:16:41,608 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 07:16:39" (1/1) ...
[2025-02-05 19:16:41,663 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 07:16:39" (1/1) ...
[2025-02-05 19:16:41,858 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-02-05 19:16:41,859 INFO  L112        PluginConnector]: ------------------------IcfgBuilder----------------------------
[2025-02-05 19:16:41,859 INFO  L270        PluginConnector]: Initializing IcfgBuilder...
[2025-02-05 19:16:41,859 INFO  L274        PluginConnector]: IcfgBuilder initialized
[2025-02-05 19:16:41,865 INFO  L184        PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 07:16:39" (1/1) ...
[2025-02-05 19:16:41,873 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-02-05 19:16:41,894 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2025-02-05 19:16:41,918 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2025-02-05 19:16:41,928 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2025-02-05 19:16:41,964 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2025-02-05 19:16:41,965 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2025-02-05 19:16:41,965 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2025-02-05 19:16:41,965 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2025-02-05 19:16:42,411 INFO  L257             CfgBuilder]: Building ICFG
[2025-02-05 19:16:42,412 INFO  L287             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-02-05 19:16:56,670 INFO  L?                        ?]: Removed 5563 outVars from TransFormulas that were not future-live.
[2025-02-05 19:16:56,670 INFO  L308             CfgBuilder]: Performing block encoding
[2025-02-05 19:16:56,902 INFO  L332             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2025-02-05 19:16:56,902 INFO  L337             CfgBuilder]: Removed 0 assume(true) statements.
[2025-02-05 19:16:56,903 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 07:16:56 BoogieIcfgContainer
[2025-02-05 19:16:56,903 INFO  L131        PluginConnector]: ------------------------ END IcfgBuilder----------------------------
[2025-02-05 19:16:56,905 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-02-05 19:16:56,905 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-02-05 19:16:56,909 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-02-05 19:16:56,909 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 07:16:39" (1/3) ...
[2025-02-05 19:16:56,910 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37cedfd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 07:16:56, skipping insertion in model container
[2025-02-05 19:16:56,910 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 07:16:39" (2/3) ...
[2025-02-05 19:16:56,910 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37cedfd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 07:16:56, skipping insertion in model container
[2025-02-05 19:16:56,911 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 07:16:56" (3/3) ...
[2025-02-05 19:16:56,912 INFO  L128   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.iprotocol.2.prop1-back-serstep.c
[2025-02-05 19:16:56,925 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-02-05 19:16:56,926 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.iprotocol.2.prop1-back-serstep.c that has 1 procedures, 3538 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2025-02-05 19:16:57,020 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-02-05 19:16:57,030 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;@4f8c43f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-02-05 19:16:57,030 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-02-05 19:16:57,042 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 3538 states, 3536 states have (on average 1.5025452488687783) internal successors, (5313), 3537 states have internal predecessors, (5313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:16:57,061 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 346
[2025-02-05 19:16:57,061 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-05 19:16:57,062 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-05 19:16:57,063 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-05 19:16:57,067 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-05 19:16:57,068 INFO  L85        PathProgramCache]: Analyzing trace with hash -190607553, now seen corresponding path program 1 times
[2025-02-05 19:16:57,073 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-05 19:16:57,076 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338960057]
[2025-02-05 19:16:57,076 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-05 19:16:57,077 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-05 19:16:57,225 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 345 statements into 1 equivalence classes.
[2025-02-05 19:16:57,465 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 345 of 345 statements.
[2025-02-05 19:16:57,465 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-05 19:16:57,465 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-05 19:16:58,604 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-05 19:16:58,607 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-05 19:16:58,607 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338960057]
[2025-02-05 19:16:58,608 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338960057] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-05 19:16:58,608 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-05 19:16:58,608 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-02-05 19:16:58,609 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578560554]
[2025-02-05 19:16:58,610 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-05 19:16:58,613 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-02-05 19:16:58,614 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-05 19:16:58,629 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-02-05 19:16:58,630 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-02-05 19:16:58,637 INFO  L87              Difference]: Start difference. First operand  has 3538 states, 3536 states have (on average 1.5025452488687783) internal successors, (5313), 3537 states have internal predecessors, (5313), 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 86.25) internal successors, (345), 4 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:17:00,235 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-05 19:17:00,236 INFO  L93              Difference]: Finished difference Result 6893 states and 10355 transitions.
[2025-02-05 19:17:00,237 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-02-05 19:17:00,238 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 86.25) internal successors, (345), 4 states have internal predecessors, (345), 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 345
[2025-02-05 19:17:00,239 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-05 19:17:00,258 INFO  L225             Difference]: With dead ends: 6893
[2025-02-05 19:17:00,258 INFO  L226             Difference]: Without dead ends: 3537
[2025-02-05 19:17:00,266 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
[2025-02-05 19:17:00,268 INFO  L435           NwaCegarLoop]: 4430 mSDtfsCounter, 0 mSDsluCounter, 8855 mSDsCounter, 0 mSdLazyCounter, 2641 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13285 SdHoareTripleChecker+Invalid, 2641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time
[2025-02-05 19:17:00,269 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13285 Invalid, 2641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2641 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time]
[2025-02-05 19:17:00,283 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3537 states.
[2025-02-05 19:17:00,351 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3537 to 3537.
[2025-02-05 19:17:00,356 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3537 states, 3536 states have (on average 1.5019796380090498) internal successors, (5311), 3536 states have internal predecessors, (5311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:17:00,369 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3537 states to 3537 states and 5311 transitions.
[2025-02-05 19:17:00,370 INFO  L78                 Accepts]: Start accepts. Automaton has 3537 states and 5311 transitions. Word has length 345
[2025-02-05 19:17:00,371 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-05 19:17:00,371 INFO  L471      AbstractCegarLoop]: Abstraction has 3537 states and 5311 transitions.
[2025-02-05 19:17:00,371 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 86.25) internal successors, (345), 4 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:17:00,372 INFO  L276                IsEmpty]: Start isEmpty. Operand 3537 states and 5311 transitions.
[2025-02-05 19:17:00,375 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 347
[2025-02-05 19:17:00,375 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-05 19:17:00,376 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-05 19:17:00,376 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2025-02-05 19:17:00,376 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-05 19:17:00,377 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-05 19:17:00,377 INFO  L85        PathProgramCache]: Analyzing trace with hash -1609182713, now seen corresponding path program 1 times
[2025-02-05 19:17:00,377 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-05 19:17:00,377 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463430826]
[2025-02-05 19:17:00,377 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-05 19:17:00,377 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-05 19:17:00,428 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 346 statements into 1 equivalence classes.
[2025-02-05 19:17:00,487 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 346 of 346 statements.
[2025-02-05 19:17:00,488 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-05 19:17:00,488 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-05 19:17:00,985 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-05 19:17:00,985 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-05 19:17:00,986 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463430826]
[2025-02-05 19:17:00,986 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463430826] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-05 19:17:00,986 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-05 19:17:00,986 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-02-05 19:17:00,986 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216526872]
[2025-02-05 19:17:00,986 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-05 19:17:00,987 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-02-05 19:17:00,987 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-05 19:17:00,988 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-02-05 19:17:00,988 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-02-05 19:17:00,988 INFO  L87              Difference]: Start difference. First operand 3537 states and 5311 transitions. Second operand  has 4 states, 4 states have (on average 86.5) internal successors, (346), 4 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:17:02,334 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-05 19:17:02,334 INFO  L93              Difference]: Finished difference Result 6894 states and 10353 transitions.
[2025-02-05 19:17:02,334 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-02-05 19:17:02,335 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 86.5) internal successors, (346), 4 states have internal predecessors, (346), 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 346
[2025-02-05 19:17:02,336 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-05 19:17:02,346 INFO  L225             Difference]: With dead ends: 6894
[2025-02-05 19:17:02,346 INFO  L226             Difference]: Without dead ends: 3539
[2025-02-05 19:17:02,350 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
[2025-02-05 19:17:02,351 INFO  L435           NwaCegarLoop]: 4430 mSDtfsCounter, 0 mSDsluCounter, 8852 mSDsCounter, 0 mSdLazyCounter, 2644 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13282 SdHoareTripleChecker+Invalid, 2644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time
[2025-02-05 19:17:02,351 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13282 Invalid, 2644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2644 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time]
[2025-02-05 19:17:02,355 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3539 states.
[2025-02-05 19:17:02,391 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3539 to 3539.
[2025-02-05 19:17:02,396 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3539 states, 3538 states have (on average 1.501695873374788) internal successors, (5313), 3538 states have internal predecessors, (5313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:17:02,404 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3539 states to 3539 states and 5313 transitions.
[2025-02-05 19:17:02,405 INFO  L78                 Accepts]: Start accepts. Automaton has 3539 states and 5313 transitions. Word has length 346
[2025-02-05 19:17:02,405 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-05 19:17:02,405 INFO  L471      AbstractCegarLoop]: Abstraction has 3539 states and 5313 transitions.
[2025-02-05 19:17:02,406 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 86.5) internal successors, (346), 4 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:17:02,406 INFO  L276                IsEmpty]: Start isEmpty. Operand 3539 states and 5313 transitions.
[2025-02-05 19:17:02,409 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 348
[2025-02-05 19:17:02,409 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-05 19:17:02,409 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-05 19:17:02,409 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-02-05 19:17:02,409 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-05 19:17:02,410 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-05 19:17:02,410 INFO  L85        PathProgramCache]: Analyzing trace with hash -708509638, now seen corresponding path program 1 times
[2025-02-05 19:17:02,410 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-05 19:17:02,410 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99133555]
[2025-02-05 19:17:02,410 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-05 19:17:02,410 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-05 19:17:02,460 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 347 statements into 1 equivalence classes.
[2025-02-05 19:17:02,504 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 347 of 347 statements.
[2025-02-05 19:17:02,504 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-05 19:17:02,504 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-05 19:17:02,932 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-05 19:17:02,932 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-05 19:17:02,932 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99133555]
[2025-02-05 19:17:02,932 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99133555] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-05 19:17:02,932 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-05 19:17:02,933 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-02-05 19:17:02,933 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550630943]
[2025-02-05 19:17:02,933 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-05 19:17:02,933 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-02-05 19:17:02,933 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-05 19:17:02,934 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-02-05 19:17:02,934 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-02-05 19:17:02,934 INFO  L87              Difference]: Start difference. First operand 3539 states and 5313 transitions. Second operand  has 4 states, 4 states have (on average 86.75) internal successors, (347), 4 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:17:04,218 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-05 19:17:04,219 INFO  L93              Difference]: Finished difference Result 6898 states and 10357 transitions.
[2025-02-05 19:17:04,219 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-02-05 19:17:04,219 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 86.75) internal successors, (347), 4 states have internal predecessors, (347), 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 347
[2025-02-05 19:17:04,220 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-05 19:17:04,229 INFO  L225             Difference]: With dead ends: 6898
[2025-02-05 19:17:04,229 INFO  L226             Difference]: Without dead ends: 3541
[2025-02-05 19:17:04,232 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
[2025-02-05 19:17:04,233 INFO  L435           NwaCegarLoop]: 4430 mSDtfsCounter, 0 mSDsluCounter, 8852 mSDsCounter, 0 mSdLazyCounter, 2644 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13282 SdHoareTripleChecker+Invalid, 2644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2025-02-05 19:17:04,233 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13282 Invalid, 2644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2644 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2025-02-05 19:17:04,236 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3541 states.
[2025-02-05 19:17:04,269 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3541 to 3541.
[2025-02-05 19:17:04,272 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3541 states, 3540 states have (on average 1.5014124293785311) internal successors, (5315), 3540 states have internal predecessors, (5315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:17:04,277 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3541 states to 3541 states and 5315 transitions.
[2025-02-05 19:17:04,278 INFO  L78                 Accepts]: Start accepts. Automaton has 3541 states and 5315 transitions. Word has length 347
[2025-02-05 19:17:04,278 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-05 19:17:04,278 INFO  L471      AbstractCegarLoop]: Abstraction has 3541 states and 5315 transitions.
[2025-02-05 19:17:04,278 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 86.75) internal successors, (347), 4 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:17:04,279 INFO  L276                IsEmpty]: Start isEmpty. Operand 3541 states and 5315 transitions.
[2025-02-05 19:17:04,281 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 349
[2025-02-05 19:17:04,281 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-05 19:17:04,281 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-05 19:17:04,281 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-02-05 19:17:04,282 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-05 19:17:04,282 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-05 19:17:04,282 INFO  L85        PathProgramCache]: Analyzing trace with hash 1399405196, now seen corresponding path program 1 times
[2025-02-05 19:17:04,282 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-05 19:17:04,282 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374511740]
[2025-02-05 19:17:04,282 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-05 19:17:04,283 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-05 19:17:04,327 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 348 statements into 1 equivalence classes.
[2025-02-05 19:17:04,363 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 348 of 348 statements.
[2025-02-05 19:17:04,363 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-05 19:17:04,363 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-05 19:17:05,030 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-05 19:17:05,030 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-05 19:17:05,030 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374511740]
[2025-02-05 19:17:05,030 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374511740] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-05 19:17:05,030 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-05 19:17:05,030 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-02-05 19:17:05,030 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228166670]
[2025-02-05 19:17:05,030 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-05 19:17:05,031 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-02-05 19:17:05,031 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-05 19:17:05,032 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-02-05 19:17:05,032 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2025-02-05 19:17:05,032 INFO  L87              Difference]: Start difference. First operand 3541 states and 5315 transitions. Second operand  has 6 states, 6 states have (on average 58.0) internal successors, (348), 6 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:17:07,213 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-05 19:17:07,213 INFO  L93              Difference]: Finished difference Result 10245 states and 15382 transitions.
[2025-02-05 19:17:07,214 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2025-02-05 19:17:07,214 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 58.0) internal successors, (348), 6 states have internal predecessors, (348), 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 348
[2025-02-05 19:17:07,215 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-05 19:17:07,234 INFO  L225             Difference]: With dead ends: 10245
[2025-02-05 19:17:07,234 INFO  L226             Difference]: Without dead ends: 6886
[2025-02-05 19:17:07,240 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2025-02-05 19:17:07,241 INFO  L435           NwaCegarLoop]: 4428 mSDtfsCounter, 4953 mSDsluCounter, 13053 mSDsCounter, 0 mSdLazyCounter, 3485 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4953 SdHoareTripleChecker+Valid, 17481 SdHoareTripleChecker+Invalid, 3486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time
[2025-02-05 19:17:07,242 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [4953 Valid, 17481 Invalid, 3486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3485 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time]
[2025-02-05 19:17:07,251 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6886 states.
[2025-02-05 19:17:07,306 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6886 to 4033.
[2025-02-05 19:17:07,312 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4033 states, 4032 states have (on average 1.5012400793650793) internal successors, (6053), 4032 states have internal predecessors, (6053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:17:07,318 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4033 states to 4033 states and 6053 transitions.
[2025-02-05 19:17:07,319 INFO  L78                 Accepts]: Start accepts. Automaton has 4033 states and 6053 transitions. Word has length 348
[2025-02-05 19:17:07,320 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-05 19:17:07,320 INFO  L471      AbstractCegarLoop]: Abstraction has 4033 states and 6053 transitions.
[2025-02-05 19:17:07,320 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 58.0) internal successors, (348), 6 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:17:07,320 INFO  L276                IsEmpty]: Start isEmpty. Operand 4033 states and 6053 transitions.
[2025-02-05 19:17:07,385 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1996
[2025-02-05 19:17:07,385 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-05 19:17:07,386 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2025-02-05 19:17:07,386 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-02-05 19:17:07,387 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-05 19:17:07,388 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-05 19:17:07,388 INFO  L85        PathProgramCache]: Analyzing trace with hash 750059686, now seen corresponding path program 1 times
[2025-02-05 19:17:07,388 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-05 19:17:07,389 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689641761]
[2025-02-05 19:17:07,389 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-05 19:17:07,389 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-05 19:17:07,609 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1995 statements into 1 equivalence classes.
[2025-02-05 19:17:09,140 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1995 of 1995 statements.
[2025-02-05 19:17:09,140 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-05 19:17:09,140 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-05 19:17:11,539 INFO  L134       CoverageAnalysis]: Checked inductivity of 252 backedges. 252 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-05 19:17:11,540 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-05 19:17:11,540 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689641761]
[2025-02-05 19:17:11,540 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689641761] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-05 19:17:11,540 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-05 19:17:11,540 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2025-02-05 19:17:11,540 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050767494]
[2025-02-05 19:17:11,540 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-05 19:17:11,544 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2025-02-05 19:17:11,544 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-05 19:17:11,546 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2025-02-05 19:17:11,546 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-02-05 19:17:11,550 INFO  L87              Difference]: Start difference. First operand 4033 states and 6053 transitions. Second operand  has 3 states, 3 states have (on average 665.0) internal successors, (1995), 3 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:17:12,495 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-05 19:17:12,495 INFO  L93              Difference]: Finished difference Result 7393 states and 11098 transitions.
[2025-02-05 19:17:12,496 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2025-02-05 19:17:12,497 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 665.0) internal successors, (1995), 3 states have internal predecessors, (1995), 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 1995
[2025-02-05 19:17:12,501 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-05 19:17:12,513 INFO  L225             Difference]: With dead ends: 7393
[2025-02-05 19:17:12,513 INFO  L226             Difference]: Without dead ends: 4034
[2025-02-05 19:17:12,520 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-02-05 19:17:12,525 INFO  L435           NwaCegarLoop]: 4431 mSDtfsCounter, 0 mSDsluCounter, 4426 mSDsCounter, 0 mSdLazyCounter, 1760 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8857 SdHoareTripleChecker+Invalid, 1760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2025-02-05 19:17:12,525 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8857 Invalid, 1760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1760 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2025-02-05 19:17:12,533 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4034 states.
[2025-02-05 19:17:12,610 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4034 to 4034.
[2025-02-05 19:17:12,619 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4034 states, 4033 states have (on average 1.5011157946937763) internal successors, (6054), 4033 states have internal predecessors, (6054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:17:12,630 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4034 states to 4034 states and 6054 transitions.
[2025-02-05 19:17:12,634 INFO  L78                 Accepts]: Start accepts. Automaton has 4034 states and 6054 transitions. Word has length 1995
[2025-02-05 19:17:12,635 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-05 19:17:12,635 INFO  L471      AbstractCegarLoop]: Abstraction has 4034 states and 6054 transitions.
[2025-02-05 19:17:12,636 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 665.0) internal successors, (1995), 3 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:17:12,636 INFO  L276                IsEmpty]: Start isEmpty. Operand 4034 states and 6054 transitions.
[2025-02-05 19:17:12,757 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1996
[2025-02-05 19:17:12,758 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-05 19:17:12,759 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, 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, 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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]
[2025-02-05 19:17:12,759 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2025-02-05 19:17:12,759 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-05 19:17:12,760 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-05 19:17:12,760 INFO  L85        PathProgramCache]: Analyzing trace with hash 1104708359, now seen corresponding path program 1 times
[2025-02-05 19:17:12,763 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-05 19:17:12,763 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366640031]
[2025-02-05 19:17:12,764 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-05 19:17:12,764 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-05 19:17:13,008 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1995 statements into 1 equivalence classes.
[2025-02-05 19:17:13,858 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1995 of 1995 statements.
[2025-02-05 19:17:13,859 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-05 19:17:13,859 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-05 19:17:15,630 INFO  L134       CoverageAnalysis]: Checked inductivity of 252 backedges. 252 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-05 19:17:15,631 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-05 19:17:15,631 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366640031]
[2025-02-05 19:17:15,631 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366640031] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-05 19:17:15,631 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-05 19:17:15,631 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2025-02-05 19:17:15,631 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527845637]
[2025-02-05 19:17:15,631 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-05 19:17:15,632 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2025-02-05 19:17:15,633 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-05 19:17:15,634 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2025-02-05 19:17:15,634 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-02-05 19:17:15,634 INFO  L87              Difference]: Start difference. First operand 4034 states and 6054 transitions. Second operand  has 3 states, 3 states have (on average 665.0) internal successors, (1995), 3 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:17:16,598 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-05 19:17:16,598 INFO  L93              Difference]: Finished difference Result 7395 states and 11100 transitions.
[2025-02-05 19:17:16,598 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2025-02-05 19:17:16,599 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 665.0) internal successors, (1995), 3 states have internal predecessors, (1995), 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 1995
[2025-02-05 19:17:16,600 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-05 19:17:16,609 INFO  L225             Difference]: With dead ends: 7395
[2025-02-05 19:17:16,609 INFO  L226             Difference]: Without dead ends: 4035
[2025-02-05 19:17:16,612 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-02-05 19:17:16,613 INFO  L435           NwaCegarLoop]: 4431 mSDtfsCounter, 0 mSDsluCounter, 4426 mSDsCounter, 0 mSdLazyCounter, 1760 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8857 SdHoareTripleChecker+Invalid, 1760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2025-02-05 19:17:16,613 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8857 Invalid, 1760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1760 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2025-02-05 19:17:16,618 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4035 states.
[2025-02-05 19:17:16,664 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4035 to 4035.
[2025-02-05 19:17:16,669 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4035 states, 4034 states have (on average 1.5009915716410511) internal successors, (6055), 4034 states have internal predecessors, (6055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:17:16,674 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4035 states to 4035 states and 6055 transitions.
[2025-02-05 19:17:16,675 INFO  L78                 Accepts]: Start accepts. Automaton has 4035 states and 6055 transitions. Word has length 1995
[2025-02-05 19:17:16,676 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-05 19:17:16,676 INFO  L471      AbstractCegarLoop]: Abstraction has 4035 states and 6055 transitions.
[2025-02-05 19:17:16,676 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 665.0) internal successors, (1995), 3 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:17:16,676 INFO  L276                IsEmpty]: Start isEmpty. Operand 4035 states and 6055 transitions.
[2025-02-05 19:17:16,716 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1996
[2025-02-05 19:17:16,716 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-05 19:17:16,717 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, 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, 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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]
[2025-02-05 19:17:16,717 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2025-02-05 19:17:16,718 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-05 19:17:16,718 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-05 19:17:16,719 INFO  L85        PathProgramCache]: Analyzing trace with hash 1820703912, now seen corresponding path program 1 times
[2025-02-05 19:17:16,719 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-05 19:17:16,719 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576962078]
[2025-02-05 19:17:16,719 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-05 19:17:16,720 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-05 19:17:16,971 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1995 statements into 1 equivalence classes.
[2025-02-05 19:17:17,938 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1995 of 1995 statements.
[2025-02-05 19:17:17,938 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-05 19:17:17,938 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-05 19:17:20,376 INFO  L134       CoverageAnalysis]: Checked inductivity of 252 backedges. 252 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-05 19:17:20,377 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-05 19:17:20,377 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576962078]
[2025-02-05 19:17:20,377 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576962078] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-05 19:17:20,377 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-05 19:17:20,377 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2025-02-05 19:17:20,377 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86120399]
[2025-02-05 19:17:20,377 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-05 19:17:20,379 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2025-02-05 19:17:20,382 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-05 19:17:20,384 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2025-02-05 19:17:20,384 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-02-05 19:17:20,385 INFO  L87              Difference]: Start difference. First operand 4035 states and 6055 transitions. Second operand  has 3 states, 3 states have (on average 665.0) internal successors, (1995), 3 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:17:21,272 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-05 19:17:21,272 INFO  L93              Difference]: Finished difference Result 7397 states and 11102 transitions.
[2025-02-05 19:17:21,273 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2025-02-05 19:17:21,273 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 665.0) internal successors, (1995), 3 states have internal predecessors, (1995), 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 1995
[2025-02-05 19:17:21,274 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-05 19:17:21,280 INFO  L225             Difference]: With dead ends: 7397
[2025-02-05 19:17:21,281 INFO  L226             Difference]: Without dead ends: 4036
[2025-02-05 19:17:21,283 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-02-05 19:17:21,284 INFO  L435           NwaCegarLoop]: 4431 mSDtfsCounter, 0 mSDsluCounter, 4426 mSDsCounter, 0 mSdLazyCounter, 1760 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8857 SdHoareTripleChecker+Invalid, 1760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2025-02-05 19:17:21,284 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8857 Invalid, 1760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1760 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2025-02-05 19:17:21,287 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4036 states.
[2025-02-05 19:17:21,319 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4036 to 4036.
[2025-02-05 19:17:21,322 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4036 states, 4035 states have (on average 1.5008674101610904) internal successors, (6056), 4035 states have internal predecessors, (6056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:17:21,325 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4036 states to 4036 states and 6056 transitions.
[2025-02-05 19:17:21,325 INFO  L78                 Accepts]: Start accepts. Automaton has 4036 states and 6056 transitions. Word has length 1995
[2025-02-05 19:17:21,326 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-05 19:17:21,326 INFO  L471      AbstractCegarLoop]: Abstraction has 4036 states and 6056 transitions.
[2025-02-05 19:17:21,326 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 665.0) internal successors, (1995), 3 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:17:21,327 INFO  L276                IsEmpty]: Start isEmpty. Operand 4036 states and 6056 transitions.
[2025-02-05 19:17:21,345 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1996
[2025-02-05 19:17:21,345 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-05 19:17:21,346 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-05 19:17:21,347 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2025-02-05 19:17:21,347 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-05 19:17:21,348 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-05 19:17:21,348 INFO  L85        PathProgramCache]: Analyzing trace with hash 1865499239, now seen corresponding path program 1 times
[2025-02-05 19:17:21,348 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-05 19:17:21,348 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349667173]
[2025-02-05 19:17:21,349 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-05 19:17:21,349 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-05 19:17:21,536 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1995 statements into 1 equivalence classes.
[2025-02-05 19:17:22,073 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1995 of 1995 statements.
[2025-02-05 19:17:22,074 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-05 19:17:22,074 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-05 19:17:23,879 INFO  L134       CoverageAnalysis]: Checked inductivity of 252 backedges. 252 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-05 19:17:23,880 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-05 19:17:23,880 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349667173]
[2025-02-05 19:17:23,880 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349667173] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-05 19:17:23,880 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-05 19:17:23,880 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2025-02-05 19:17:23,880 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856734906]
[2025-02-05 19:17:23,880 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-05 19:17:23,881 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2025-02-05 19:17:23,881 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-05 19:17:23,883 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2025-02-05 19:17:23,883 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-02-05 19:17:23,883 INFO  L87              Difference]: Start difference. First operand 4036 states and 6056 transitions. Second operand  has 3 states, 3 states have (on average 665.0) internal successors, (1995), 3 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:17:24,672 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-05 19:17:24,673 INFO  L93              Difference]: Finished difference Result 7399 states and 11104 transitions.
[2025-02-05 19:17:24,673 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2025-02-05 19:17:24,674 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 665.0) internal successors, (1995), 3 states have internal predecessors, (1995), 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 1995
[2025-02-05 19:17:24,674 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-05 19:17:24,679 INFO  L225             Difference]: With dead ends: 7399
[2025-02-05 19:17:24,679 INFO  L226             Difference]: Without dead ends: 4037
[2025-02-05 19:17:24,682 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-02-05 19:17:24,682 INFO  L435           NwaCegarLoop]: 4431 mSDtfsCounter, 0 mSDsluCounter, 4426 mSDsCounter, 0 mSdLazyCounter, 1760 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8857 SdHoareTripleChecker+Invalid, 1760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2025-02-05 19:17:24,683 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8857 Invalid, 1760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1760 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2025-02-05 19:17:24,688 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4037 states.
[2025-02-05 19:17:24,751 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4037 to 4037.
[2025-02-05 19:17:24,759 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4037 states, 4036 states have (on average 1.500743310208127) internal successors, (6057), 4036 states have internal predecessors, (6057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:17:24,767 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4037 states to 4037 states and 6057 transitions.
[2025-02-05 19:17:24,767 INFO  L78                 Accepts]: Start accepts. Automaton has 4037 states and 6057 transitions. Word has length 1995
[2025-02-05 19:17:24,768 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-05 19:17:24,768 INFO  L471      AbstractCegarLoop]: Abstraction has 4037 states and 6057 transitions.
[2025-02-05 19:17:24,768 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 665.0) internal successors, (1995), 3 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:17:24,768 INFO  L276                IsEmpty]: Start isEmpty. Operand 4037 states and 6057 transitions.
[2025-02-05 19:17:24,811 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1996
[2025-02-05 19:17:24,811 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-05 19:17:24,812 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, 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, 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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]
[2025-02-05 19:17:24,812 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2025-02-05 19:17:24,812 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-05 19:17:24,814 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-05 19:17:24,815 INFO  L85        PathProgramCache]: Analyzing trace with hash -1574002168, now seen corresponding path program 1 times
[2025-02-05 19:17:24,815 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-05 19:17:24,815 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455171804]
[2025-02-05 19:17:24,815 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-05 19:17:24,815 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-05 19:17:25,043 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1995 statements into 1 equivalence classes.
[2025-02-05 19:17:25,564 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1995 of 1995 statements.
[2025-02-05 19:17:25,565 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-05 19:17:25,565 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-05 19:17:27,311 INFO  L134       CoverageAnalysis]: Checked inductivity of 252 backedges. 252 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-05 19:17:27,311 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-05 19:17:27,311 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455171804]
[2025-02-05 19:17:27,311 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455171804] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-05 19:17:27,311 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-05 19:17:27,312 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2025-02-05 19:17:27,312 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925965847]
[2025-02-05 19:17:27,312 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-05 19:17:27,313 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2025-02-05 19:17:27,313 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-05 19:17:27,314 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2025-02-05 19:17:27,314 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-02-05 19:17:27,315 INFO  L87              Difference]: Start difference. First operand 4037 states and 6057 transitions. Second operand  has 3 states, 3 states have (on average 665.0) internal successors, (1995), 3 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:17:28,143 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-05 19:17:28,143 INFO  L93              Difference]: Finished difference Result 7401 states and 11106 transitions.
[2025-02-05 19:17:28,144 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2025-02-05 19:17:28,144 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 665.0) internal successors, (1995), 3 states have internal predecessors, (1995), 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 1995
[2025-02-05 19:17:28,145 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-05 19:17:28,149 INFO  L225             Difference]: With dead ends: 7401
[2025-02-05 19:17:28,150 INFO  L226             Difference]: Without dead ends: 4038
[2025-02-05 19:17:28,152 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-02-05 19:17:28,153 INFO  L435           NwaCegarLoop]: 4431 mSDtfsCounter, 0 mSDsluCounter, 4426 mSDsCounter, 0 mSdLazyCounter, 1760 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8857 SdHoareTripleChecker+Invalid, 1760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2025-02-05 19:17:28,154 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8857 Invalid, 1760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1760 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2025-02-05 19:17:28,157 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4038 states.
[2025-02-05 19:17:28,181 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4038 to 4038.
[2025-02-05 19:17:28,185 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4038 states, 4037 states have (on average 1.500619271736438) internal successors, (6058), 4037 states have internal predecessors, (6058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:17:28,188 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4038 states to 4038 states and 6058 transitions.
[2025-02-05 19:17:28,189 INFO  L78                 Accepts]: Start accepts. Automaton has 4038 states and 6058 transitions. Word has length 1995
[2025-02-05 19:17:28,189 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-05 19:17:28,189 INFO  L471      AbstractCegarLoop]: Abstraction has 4038 states and 6058 transitions.
[2025-02-05 19:17:28,190 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 665.0) internal successors, (1995), 3 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:17:28,190 INFO  L276                IsEmpty]: Start isEmpty. Operand 4038 states and 6058 transitions.
[2025-02-05 19:17:28,208 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1996
[2025-02-05 19:17:28,208 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-05 19:17:28,209 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, 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, 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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]
[2025-02-05 19:17:28,209 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2025-02-05 19:17:28,210 INFO  L396      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-05 19:17:28,213 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-05 19:17:28,213 INFO  L85        PathProgramCache]: Analyzing trace with hash -930463289, now seen corresponding path program 1 times
[2025-02-05 19:17:28,213 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-05 19:17:28,214 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971231219]
[2025-02-05 19:17:28,214 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-05 19:17:28,214 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-05 19:17:28,536 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1995 statements into 1 equivalence classes.
[2025-02-05 19:17:29,208 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1995 of 1995 statements.
[2025-02-05 19:17:29,208 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-05 19:17:29,208 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-05 19:17:31,253 INFO  L134       CoverageAnalysis]: Checked inductivity of 252 backedges. 252 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-05 19:17:31,253 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-05 19:17:31,253 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971231219]
[2025-02-05 19:17:31,253 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971231219] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-05 19:17:31,253 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-05 19:17:31,253 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2025-02-05 19:17:31,253 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267015145]
[2025-02-05 19:17:31,253 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-05 19:17:31,254 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2025-02-05 19:17:31,255 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-05 19:17:31,256 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2025-02-05 19:17:31,256 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-02-05 19:17:31,256 INFO  L87              Difference]: Start difference. First operand 4038 states and 6058 transitions. Second operand  has 3 states, 3 states have (on average 665.0) internal successors, (1995), 3 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:17:32,070 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-05 19:17:32,070 INFO  L93              Difference]: Finished difference Result 7403 states and 11108 transitions.
[2025-02-05 19:17:32,073 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2025-02-05 19:17:32,073 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 665.0) internal successors, (1995), 3 states have internal predecessors, (1995), 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 1995
[2025-02-05 19:17:32,074 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-05 19:17:32,078 INFO  L225             Difference]: With dead ends: 7403
[2025-02-05 19:17:32,079 INFO  L226             Difference]: Without dead ends: 4039
[2025-02-05 19:17:32,081 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-02-05 19:17:32,082 INFO  L435           NwaCegarLoop]: 4431 mSDtfsCounter, 0 mSDsluCounter, 4426 mSDsCounter, 0 mSdLazyCounter, 1760 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8857 SdHoareTripleChecker+Invalid, 1760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2025-02-05 19:17:32,082 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8857 Invalid, 1760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1760 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2025-02-05 19:17:32,085 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4039 states.
[2025-02-05 19:17:32,105 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4039 to 4039.
[2025-02-05 19:17:32,108 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4039 states, 4038 states have (on average 1.5004952947003467) internal successors, (6059), 4038 states have internal predecessors, (6059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:17:32,110 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4039 states to 4039 states and 6059 transitions.
[2025-02-05 19:17:32,111 INFO  L78                 Accepts]: Start accepts. Automaton has 4039 states and 6059 transitions. Word has length 1995
[2025-02-05 19:17:32,111 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-05 19:17:32,111 INFO  L471      AbstractCegarLoop]: Abstraction has 4039 states and 6059 transitions.
[2025-02-05 19:17:32,111 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 665.0) internal successors, (1995), 3 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:17:32,112 INFO  L276                IsEmpty]: Start isEmpty. Operand 4039 states and 6059 transitions.
[2025-02-05 19:17:32,164 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1996
[2025-02-05 19:17:32,165 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-05 19:17:32,166 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, 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, 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[2025-02-05 19:17:32,166 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2025-02-05 19:17:32,166 INFO  L396      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-05 19:17:32,167 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-05 19:17:32,168 INFO  L85        PathProgramCache]: Analyzing trace with hash 898537512, now seen corresponding path program 1 times
[2025-02-05 19:17:32,168 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-05 19:17:32,168 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785538709]
[2025-02-05 19:17:32,168 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-05 19:17:32,169 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-05 19:17:32,442 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1995 statements into 1 equivalence classes.
[2025-02-05 19:17:33,110 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1995 of 1995 statements.
[2025-02-05 19:17:33,110 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-05 19:17:33,110 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-05 19:17:34,892 INFO  L134       CoverageAnalysis]: Checked inductivity of 252 backedges. 252 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-05 19:17:34,892 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-05 19:17:34,892 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785538709]
[2025-02-05 19:17:34,892 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785538709] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-05 19:17:34,892 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-05 19:17:34,892 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2025-02-05 19:17:34,892 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451552315]
[2025-02-05 19:17:34,892 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-05 19:17:34,893 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2025-02-05 19:17:34,894 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-05 19:17:34,895 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2025-02-05 19:17:34,895 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-02-05 19:17:34,895 INFO  L87              Difference]: Start difference. First operand 4039 states and 6059 transitions. Second operand  has 3 states, 3 states have (on average 665.0) internal successors, (1995), 3 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:17:35,778 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-05 19:17:35,778 INFO  L93              Difference]: Finished difference Result 7405 states and 11110 transitions.
[2025-02-05 19:17:35,779 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2025-02-05 19:17:35,779 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 665.0) internal successors, (1995), 3 states have internal predecessors, (1995), 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 1995
[2025-02-05 19:17:35,780 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-05 19:17:35,794 INFO  L225             Difference]: With dead ends: 7405
[2025-02-05 19:17:35,794 INFO  L226             Difference]: Without dead ends: 4040
[2025-02-05 19:17:35,798 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-02-05 19:17:35,799 INFO  L435           NwaCegarLoop]: 4431 mSDtfsCounter, 0 mSDsluCounter, 4426 mSDsCounter, 0 mSdLazyCounter, 1760 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8857 SdHoareTripleChecker+Invalid, 1760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2025-02-05 19:17:35,802 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8857 Invalid, 1760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1760 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2025-02-05 19:17:35,805 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4040 states.
[2025-02-05 19:17:35,851 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4040 to 4040.
[2025-02-05 19:17:35,861 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4040 states, 4039 states have (on average 1.5003713790542212) internal successors, (6060), 4039 states have internal predecessors, (6060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:17:35,865 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4040 states to 4040 states and 6060 transitions.
[2025-02-05 19:17:35,868 INFO  L78                 Accepts]: Start accepts. Automaton has 4040 states and 6060 transitions. Word has length 1995
[2025-02-05 19:17:35,869 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-05 19:17:35,869 INFO  L471      AbstractCegarLoop]: Abstraction has 4040 states and 6060 transitions.
[2025-02-05 19:17:35,869 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 665.0) internal successors, (1995), 3 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:17:35,869 INFO  L276                IsEmpty]: Start isEmpty. Operand 4040 states and 6060 transitions.
[2025-02-05 19:17:35,904 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1996
[2025-02-05 19:17:35,904 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-05 19:17:35,905 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, 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, 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[2025-02-05 19:17:35,905 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2025-02-05 19:17:35,905 INFO  L396      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-05 19:17:35,906 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-05 19:17:35,906 INFO  L85        PathProgramCache]: Analyzing trace with hash -711718617, now seen corresponding path program 1 times
[2025-02-05 19:17:35,910 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-05 19:17:35,910 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433813721]
[2025-02-05 19:17:35,911 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-05 19:17:35,911 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-05 19:17:36,158 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1995 statements into 1 equivalence classes.
[2025-02-05 19:17:36,673 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1995 of 1995 statements.
[2025-02-05 19:17:36,674 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-05 19:17:36,674 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-05 19:17:38,406 INFO  L134       CoverageAnalysis]: Checked inductivity of 252 backedges. 252 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-05 19:17:38,407 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-05 19:17:38,407 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433813721]
[2025-02-05 19:17:38,407 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433813721] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-05 19:17:38,407 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-05 19:17:38,407 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2025-02-05 19:17:38,407 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185405713]
[2025-02-05 19:17:38,407 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-05 19:17:38,408 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2025-02-05 19:17:38,408 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-05 19:17:38,410 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2025-02-05 19:17:38,410 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-02-05 19:17:38,410 INFO  L87              Difference]: Start difference. First operand 4040 states and 6060 transitions. Second operand  has 3 states, 3 states have (on average 665.0) internal successors, (1995), 3 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:17:39,324 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-05 19:17:39,325 INFO  L93              Difference]: Finished difference Result 7407 states and 11112 transitions.
[2025-02-05 19:17:39,325 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2025-02-05 19:17:39,325 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 665.0) internal successors, (1995), 3 states have internal predecessors, (1995), 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 1995
[2025-02-05 19:17:39,326 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-05 19:17:39,331 INFO  L225             Difference]: With dead ends: 7407
[2025-02-05 19:17:39,331 INFO  L226             Difference]: Without dead ends: 4041
[2025-02-05 19:17:39,334 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-02-05 19:17:39,335 INFO  L435           NwaCegarLoop]: 4431 mSDtfsCounter, 0 mSDsluCounter, 4426 mSDsCounter, 0 mSdLazyCounter, 1760 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8857 SdHoareTripleChecker+Invalid, 1760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2025-02-05 19:17:39,335 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8857 Invalid, 1760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1760 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2025-02-05 19:17:39,337 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4041 states.
[2025-02-05 19:17:39,370 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4041 to 4041.
[2025-02-05 19:17:39,373 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4041 states, 4040 states have (on average 1.5002475247524751) internal successors, (6061), 4040 states have internal predecessors, (6061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:17:39,379 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4041 states to 4041 states and 6061 transitions.
[2025-02-05 19:17:39,379 INFO  L78                 Accepts]: Start accepts. Automaton has 4041 states and 6061 transitions. Word has length 1995
[2025-02-05 19:17:39,380 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-05 19:17:39,380 INFO  L471      AbstractCegarLoop]: Abstraction has 4041 states and 6061 transitions.
[2025-02-05 19:17:39,380 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 665.0) internal successors, (1995), 3 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:17:39,380 INFO  L276                IsEmpty]: Start isEmpty. Operand 4041 states and 6061 transitions.
[2025-02-05 19:17:39,417 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1996
[2025-02-05 19:17:39,418 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-05 19:17:39,419 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, 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, 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[2025-02-05 19:17:39,419 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2025-02-05 19:17:39,419 INFO  L396      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-05 19:17:39,420 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-05 19:17:39,420 INFO  L85        PathProgramCache]: Analyzing trace with hash -471457208, now seen corresponding path program 1 times
[2025-02-05 19:17:39,421 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-05 19:17:39,421 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790769413]
[2025-02-05 19:17:39,421 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-05 19:17:39,421 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-05 19:17:39,645 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1995 statements into 1 equivalence classes.
[2025-02-05 19:17:40,406 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1995 of 1995 statements.
[2025-02-05 19:17:40,406 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-05 19:17:40,406 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-05 19:17:42,312 INFO  L134       CoverageAnalysis]: Checked inductivity of 252 backedges. 252 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-05 19:17:42,313 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-05 19:17:42,313 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790769413]
[2025-02-05 19:17:42,313 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790769413] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-05 19:17:42,313 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-05 19:17:42,313 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2025-02-05 19:17:42,313 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063596785]
[2025-02-05 19:17:42,313 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-05 19:17:42,314 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2025-02-05 19:17:42,314 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-05 19:17:42,316 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2025-02-05 19:17:42,316 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-02-05 19:17:42,316 INFO  L87              Difference]: Start difference. First operand 4041 states and 6061 transitions. Second operand  has 3 states, 3 states have (on average 665.0) internal successors, (1995), 3 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:17:43,238 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-05 19:17:43,238 INFO  L93              Difference]: Finished difference Result 7409 states and 11114 transitions.
[2025-02-05 19:17:43,238 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2025-02-05 19:17:43,239 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 665.0) internal successors, (1995), 3 states have internal predecessors, (1995), 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 1995
[2025-02-05 19:17:43,239 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-05 19:17:43,242 INFO  L225             Difference]: With dead ends: 7409
[2025-02-05 19:17:43,242 INFO  L226             Difference]: Without dead ends: 4042
[2025-02-05 19:17:43,245 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-02-05 19:17:43,248 INFO  L435           NwaCegarLoop]: 4431 mSDtfsCounter, 0 mSDsluCounter, 4426 mSDsCounter, 0 mSdLazyCounter, 1760 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8857 SdHoareTripleChecker+Invalid, 1760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2025-02-05 19:17:43,248 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8857 Invalid, 1760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1760 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2025-02-05 19:17:43,253 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4042 states.
[2025-02-05 19:17:43,294 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4042 to 4042.
[2025-02-05 19:17:43,300 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4042 states, 4041 states have (on average 1.500123731749567) internal successors, (6062), 4041 states have internal predecessors, (6062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:17:43,307 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4042 states to 4042 states and 6062 transitions.
[2025-02-05 19:17:43,307 INFO  L78                 Accepts]: Start accepts. Automaton has 4042 states and 6062 transitions. Word has length 1995
[2025-02-05 19:17:43,307 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-05 19:17:43,307 INFO  L471      AbstractCegarLoop]: Abstraction has 4042 states and 6062 transitions.
[2025-02-05 19:17:43,308 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 665.0) internal successors, (1995), 3 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:17:43,311 INFO  L276                IsEmpty]: Start isEmpty. Operand 4042 states and 6062 transitions.
[2025-02-05 19:17:43,341 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1996
[2025-02-05 19:17:43,344 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-05 19:17:43,345 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-05 19:17:43,345 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2025-02-05 19:17:43,346 INFO  L396      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-05 19:17:43,350 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-05 19:17:43,351 INFO  L85        PathProgramCache]: Analyzing trace with hash 4135047, now seen corresponding path program 1 times
[2025-02-05 19:17:43,351 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-05 19:17:43,351 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628374938]
[2025-02-05 19:17:43,351 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-05 19:17:43,351 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-05 19:17:43,737 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1995 statements into 1 equivalence classes.
[2025-02-05 19:17:44,260 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1995 of 1995 statements.
[2025-02-05 19:17:44,260 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-05 19:17:44,260 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-05 19:17:46,006 INFO  L134       CoverageAnalysis]: Checked inductivity of 252 backedges. 252 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-05 19:17:46,006 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-05 19:17:46,006 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628374938]
[2025-02-05 19:17:46,006 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628374938] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-05 19:17:46,006 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-05 19:17:46,006 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2025-02-05 19:17:46,007 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802464249]
[2025-02-05 19:17:46,007 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-05 19:17:46,008 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2025-02-05 19:17:46,008 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-05 19:17:46,009 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2025-02-05 19:17:46,010 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-02-05 19:17:46,010 INFO  L87              Difference]: Start difference. First operand 4042 states and 6062 transitions. Second operand  has 3 states, 3 states have (on average 665.0) internal successors, (1995), 3 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:17:46,834 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-05 19:17:46,834 INFO  L93              Difference]: Finished difference Result 7411 states and 11116 transitions.
[2025-02-05 19:17:46,834 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2025-02-05 19:17:46,835 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 665.0) internal successors, (1995), 3 states have internal predecessors, (1995), 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 1995
[2025-02-05 19:17:46,836 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-05 19:17:46,838 INFO  L225             Difference]: With dead ends: 7411
[2025-02-05 19:17:46,838 INFO  L226             Difference]: Without dead ends: 4043
[2025-02-05 19:17:46,842 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-02-05 19:17:46,842 INFO  L435           NwaCegarLoop]: 4431 mSDtfsCounter, 0 mSDsluCounter, 4426 mSDsCounter, 0 mSdLazyCounter, 1760 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8857 SdHoareTripleChecker+Invalid, 1760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2025-02-05 19:17:46,842 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8857 Invalid, 1760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1760 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2025-02-05 19:17:46,845 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4043 states.
[2025-02-05 19:17:46,876 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4043 to 4043.
[2025-02-05 19:17:46,878 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4043 states, 4042 states have (on average 1.5) internal successors, (6063), 4042 states have internal predecessors, (6063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:17:46,883 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4043 states to 4043 states and 6063 transitions.
[2025-02-05 19:17:46,883 INFO  L78                 Accepts]: Start accepts. Automaton has 4043 states and 6063 transitions. Word has length 1995
[2025-02-05 19:17:46,884 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-05 19:17:46,884 INFO  L471      AbstractCegarLoop]: Abstraction has 4043 states and 6063 transitions.
[2025-02-05 19:17:46,884 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 665.0) internal successors, (1995), 3 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:17:46,884 INFO  L276                IsEmpty]: Start isEmpty. Operand 4043 states and 6063 transitions.
[2025-02-05 19:17:46,920 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1996
[2025-02-05 19:17:46,920 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-05 19:17:46,921 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, 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, 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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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-05 19:17:46,922 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2025-02-05 19:17:46,922 INFO  L396      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-05 19:17:46,923 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-05 19:17:46,923 INFO  L85        PathProgramCache]: Analyzing trace with hash -821980248, now seen corresponding path program 1 times
[2025-02-05 19:17:46,923 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-05 19:17:46,923 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449860326]
[2025-02-05 19:17:46,924 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-05 19:17:46,924 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-05 19:17:47,279 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1995 statements into 1 equivalence classes.
[2025-02-05 19:17:47,926 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1995 of 1995 statements.
[2025-02-05 19:17:47,927 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-05 19:17:47,927 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-05 19:17:49,734 INFO  L134       CoverageAnalysis]: Checked inductivity of 252 backedges. 252 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-05 19:17:49,734 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-05 19:17:49,734 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449860326]
[2025-02-05 19:17:49,734 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449860326] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-05 19:17:49,734 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-05 19:17:49,734 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2025-02-05 19:17:49,734 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099071687]
[2025-02-05 19:17:49,735 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-05 19:17:49,736 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2025-02-05 19:17:49,736 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-05 19:17:49,737 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2025-02-05 19:17:49,737 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-02-05 19:17:49,737 INFO  L87              Difference]: Start difference. First operand 4043 states and 6063 transitions. Second operand  has 3 states, 3 states have (on average 665.0) internal successors, (1995), 3 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:17:50,667 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-05 19:17:50,667 INFO  L93              Difference]: Finished difference Result 7413 states and 11118 transitions.
[2025-02-05 19:17:50,668 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2025-02-05 19:17:50,668 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 665.0) internal successors, (1995), 3 states have internal predecessors, (1995), 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 1995
[2025-02-05 19:17:50,669 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-05 19:17:50,671 INFO  L225             Difference]: With dead ends: 7413
[2025-02-05 19:17:50,672 INFO  L226             Difference]: Without dead ends: 4044
[2025-02-05 19:17:50,674 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-02-05 19:17:50,675 INFO  L435           NwaCegarLoop]: 4431 mSDtfsCounter, 0 mSDsluCounter, 4426 mSDsCounter, 0 mSdLazyCounter, 1760 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8857 SdHoareTripleChecker+Invalid, 1760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2025-02-05 19:17:50,675 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8857 Invalid, 1760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1760 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2025-02-05 19:17:50,678 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4044 states.
[2025-02-05 19:17:50,703 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4044 to 4044.
[2025-02-05 19:17:50,706 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4044 states, 4043 states have (on average 1.499876329458323) internal successors, (6064), 4043 states have internal predecessors, (6064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:17:50,709 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4044 states to 4044 states and 6064 transitions.
[2025-02-05 19:17:50,709 INFO  L78                 Accepts]: Start accepts. Automaton has 4044 states and 6064 transitions. Word has length 1995
[2025-02-05 19:17:50,709 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-05 19:17:50,710 INFO  L471      AbstractCegarLoop]: Abstraction has 4044 states and 6064 transitions.
[2025-02-05 19:17:50,710 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 665.0) internal successors, (1995), 3 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:17:50,710 INFO  L276                IsEmpty]: Start isEmpty. Operand 4044 states and 6064 transitions.
[2025-02-05 19:17:50,727 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1996
[2025-02-05 19:17:50,727 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-05 19:17:50,728 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, 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, 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[2025-02-05 19:17:50,729 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2025-02-05 19:17:50,729 INFO  L396      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-05 19:17:50,729 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-05 19:17:50,730 INFO  L85        PathProgramCache]: Analyzing trace with hash 448063463, now seen corresponding path program 1 times
[2025-02-05 19:17:50,730 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-05 19:17:50,730 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586980326]
[2025-02-05 19:17:50,730 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-05 19:17:50,730 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-05 19:17:50,908 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1995 statements into 1 equivalence classes.
[2025-02-05 19:17:51,413 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1995 of 1995 statements.
[2025-02-05 19:17:51,413 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-05 19:17:51,413 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-05 19:17:53,088 INFO  L134       CoverageAnalysis]: Checked inductivity of 252 backedges. 252 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-05 19:17:53,088 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-05 19:17:53,088 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586980326]
[2025-02-05 19:17:53,089 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586980326] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-05 19:17:53,089 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-05 19:17:53,089 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2025-02-05 19:17:53,090 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623312572]
[2025-02-05 19:17:53,090 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-05 19:17:53,091 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2025-02-05 19:17:53,091 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-05 19:17:53,092 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2025-02-05 19:17:53,092 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-02-05 19:17:53,092 INFO  L87              Difference]: Start difference. First operand 4044 states and 6064 transitions. Second operand  has 3 states, 3 states have (on average 665.0) internal successors, (1995), 3 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:17:54,016 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-05 19:17:54,017 INFO  L93              Difference]: Finished difference Result 7415 states and 11120 transitions.
[2025-02-05 19:17:54,017 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2025-02-05 19:17:54,017 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 665.0) internal successors, (1995), 3 states have internal predecessors, (1995), 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 1995
[2025-02-05 19:17:54,018 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-05 19:17:54,020 INFO  L225             Difference]: With dead ends: 7415
[2025-02-05 19:17:54,020 INFO  L226             Difference]: Without dead ends: 4045
[2025-02-05 19:17:54,023 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-02-05 19:17:54,023 INFO  L435           NwaCegarLoop]: 4431 mSDtfsCounter, 0 mSDsluCounter, 4426 mSDsCounter, 0 mSdLazyCounter, 1760 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8857 SdHoareTripleChecker+Invalid, 1760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2025-02-05 19:17:54,024 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8857 Invalid, 1760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1760 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2025-02-05 19:17:54,027 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4045 states.
[2025-02-05 19:17:54,047 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4045 to 4045.
[2025-02-05 19:17:54,049 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4045 states, 4044 states have (on average 1.4997527200791296) internal successors, (6065), 4044 states have internal predecessors, (6065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:17:54,052 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4045 states to 4045 states and 6065 transitions.
[2025-02-05 19:17:54,052 INFO  L78                 Accepts]: Start accepts. Automaton has 4045 states and 6065 transitions. Word has length 1995
[2025-02-05 19:17:54,052 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-05 19:17:54,053 INFO  L471      AbstractCegarLoop]: Abstraction has 4045 states and 6065 transitions.
[2025-02-05 19:17:54,053 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 665.0) internal successors, (1995), 3 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:17:54,053 INFO  L276                IsEmpty]: Start isEmpty. Operand 4045 states and 6065 transitions.
[2025-02-05 19:17:54,070 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1996
[2025-02-05 19:17:54,070 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-05 19:17:54,071 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, 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, 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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]
[2025-02-05 19:17:54,071 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2025-02-05 19:17:54,071 INFO  L396      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-05 19:17:54,072 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-05 19:17:54,073 INFO  L85        PathProgramCache]: Analyzing trace with hash 259305416, now seen corresponding path program 1 times
[2025-02-05 19:17:54,073 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-05 19:17:54,073 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443586289]
[2025-02-05 19:17:54,074 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-05 19:17:54,074 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-05 19:17:54,275 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1995 statements into 1 equivalence classes.
[2025-02-05 19:17:54,720 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1995 of 1995 statements.
[2025-02-05 19:17:54,721 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-05 19:17:54,721 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-05 19:17:57,108 INFO  L134       CoverageAnalysis]: Checked inductivity of 252 backedges. 252 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-02-05 19:17:57,109 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-05 19:17:57,109 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443586289]
[2025-02-05 19:17:57,109 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443586289] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-05 19:17:57,109 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-05 19:17:57,109 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2025-02-05 19:17:57,109 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101668851]
[2025-02-05 19:17:57,109 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-05 19:17:57,111 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2025-02-05 19:17:57,111 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-05 19:17:57,112 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2025-02-05 19:17:57,113 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-02-05 19:17:57,113 INFO  L87              Difference]: Start difference. First operand 4045 states and 6065 transitions. Second operand  has 3 states, 3 states have (on average 665.0) internal successors, (1995), 3 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:17:58,098 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-05 19:17:58,098 INFO  L93              Difference]: Finished difference Result 7417 states and 11122 transitions.
[2025-02-05 19:17:58,099 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2025-02-05 19:17:58,099 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 665.0) internal successors, (1995), 3 states have internal predecessors, (1995), 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 1995
[2025-02-05 19:17:58,100 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-05 19:17:58,102 INFO  L225             Difference]: With dead ends: 7417
[2025-02-05 19:17:58,102 INFO  L226             Difference]: Without dead ends: 4046
[2025-02-05 19:17:58,104 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-02-05 19:17:58,105 INFO  L435           NwaCegarLoop]: 4431 mSDtfsCounter, 0 mSDsluCounter, 4426 mSDsCounter, 0 mSdLazyCounter, 1760 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8857 SdHoareTripleChecker+Invalid, 1760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2025-02-05 19:17:58,105 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8857 Invalid, 1760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1760 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2025-02-05 19:17:58,107 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4046 states.
[2025-02-05 19:17:58,128 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4046 to 4046.
[2025-02-05 19:17:58,130 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4046 states, 4045 states have (on average 1.499629171817058) internal successors, (6066), 4045 states have internal predecessors, (6066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:17:58,134 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4046 states to 4046 states and 6066 transitions.
[2025-02-05 19:17:58,134 INFO  L78                 Accepts]: Start accepts. Automaton has 4046 states and 6066 transitions. Word has length 1995
[2025-02-05 19:17:58,134 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-05 19:17:58,134 INFO  L471      AbstractCegarLoop]: Abstraction has 4046 states and 6066 transitions.
[2025-02-05 19:17:58,135 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 665.0) internal successors, (1995), 3 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-02-05 19:17:58,135 INFO  L276                IsEmpty]: Start isEmpty. Operand 4046 states and 6066 transitions.
[2025-02-05 19:17:58,152 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1996
[2025-02-05 19:17:58,152 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-05 19:17:58,156 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, 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, 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[2025-02-05 19:17:58,156 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2025-02-05 19:17:58,156 INFO  L396      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-05 19:17:58,157 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-05 19:17:58,161 INFO  L85        PathProgramCache]: Analyzing trace with hash -1849835705, now seen corresponding path program 1 times
[2025-02-05 19:17:58,161 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-05 19:17:58,161 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799303644]
[2025-02-05 19:17:58,161 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-05 19:17:58,161 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-05 19:17:58,328 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1995 statements into 1 equivalence classes.
[2025-02-05 19:17:58,820 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1995 of 1995 statements.
[2025-02-05 19:17:58,820 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-05 19:17:58,820 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat