./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mcs.6.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.mcs.6.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 cee2bb8e55b0516384ae6b8beb1082ac3ace24ba26ece151908eb1badccf2d29
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-c00e63d-m
[2025-02-05 19:30:33,839 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-02-05 19:30:33,917 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf
[2025-02-05 19:30:33,923 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-02-05 19:30:33,924 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-02-05 19:30:33,952 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-02-05 19:30:33,952 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-02-05 19:30:33,952 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-02-05 19:30:33,953 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2025-02-05 19:30:33,953 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2025-02-05 19:30:33,954 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-02-05 19:30:33,954 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-02-05 19:30:33,954 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-02-05 19:30:33,955 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-02-05 19:30:33,955 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-02-05 19:30:33,956 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2025-02-05 19:30:33,956 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2025-02-05 19:30:33,956 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2025-02-05 19:30:33,956 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2025-02-05 19:30:33,956 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2025-02-05 19:30:33,956 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2025-02-05 19:30:33,956 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2025-02-05 19:30:33,956 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2025-02-05 19:30:33,956 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2025-02-05 19:30:33,956 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2025-02-05 19:30:33,957 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2025-02-05 19:30:33,957 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-02-05 19:30:33,957 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2025-02-05 19:30:33,957 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-02-05 19:30:33,957 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-02-05 19:30:33,957 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-02-05 19:30:33,958 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-02-05 19:30:33,958 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2025-02-05 19:30:33,958 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2025-02-05 19:30:33,958 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-02-05 19:30:33,958 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-02-05 19:30:33,958 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2025-02-05 19:30:33,958 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-02-05 19:30:33,958 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2025-02-05 19:30:33,958 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-02-05 19:30:33,958 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 -> cee2bb8e55b0516384ae6b8beb1082ac3ace24ba26ece151908eb1badccf2d29
[2025-02-05 19:30:34,245 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-02-05 19:30:34,255 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-02-05 19:30:34,258 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-02-05 19:30:34,259 INFO  L270        PluginConnector]: Initializing CDTParser...
[2025-02-05 19:30:34,259 INFO  L274        PluginConnector]: CDTParser initialized
[2025-02-05 19:30:34,261 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mcs.6.prop1-back-serstep.c
[2025-02-05 19:30:35,576 INFO  L533              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/88786bf2b/dec47a631c0c4c72aed1ff73ccbd5da5/FLAGa8759b93a
[2025-02-05 19:30:36,137 INFO  L384              CDTParser]: Found 1 translation units.
[2025-02-05 19:30:36,138 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mcs.6.prop1-back-serstep.c
[2025-02-05 19:30:36,169 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/88786bf2b/dec47a631c0c4c72aed1ff73ccbd5da5/FLAGa8759b93a
[2025-02-05 19:30:36,643 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/88786bf2b/dec47a631c0c4c72aed1ff73ccbd5da5
[2025-02-05 19:30:36,646 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-02-05 19:30:36,647 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2025-02-05 19:30:36,648 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2025-02-05 19:30:36,648 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2025-02-05 19:30:36,651 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2025-02-05 19:30:36,652 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 07:30:36" (1/1) ...
[2025-02-05 19:30:36,653 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ceb474 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 07:30:36, skipping insertion in model container
[2025-02-05 19:30:36,653 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 07:30:36" (1/1) ...
[2025-02-05 19:30:36,727 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2025-02-05 19:30:36,915 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.mcs.6.prop1-back-serstep.c[1171,1184]
[2025-02-05 19:30:37,458 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-02-05 19:30:37,468 INFO  L200         MainTranslator]: Completed pre-run
[2025-02-05 19:30:37,478 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.mcs.6.prop1-back-serstep.c[1171,1184]
[2025-02-05 19:30:37,814 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-02-05 19:30:37,829 INFO  L204         MainTranslator]: Completed translation
[2025-02-05 19:30:37,831 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 07:30:37 WrapperNode
[2025-02-05 19:30:37,831 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2025-02-05 19:30:37,832 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2025-02-05 19:30:37,832 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2025-02-05 19:30:37,833 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2025-02-05 19:30:37,838 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 07:30:37" (1/1) ...
[2025-02-05 19:30:37,933 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 07:30:37" (1/1) ...
[2025-02-05 19:30:39,339 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 14694
[2025-02-05 19:30:39,341 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2025-02-05 19:30:39,341 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-02-05 19:30:39,342 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-02-05 19:30:39,342 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-02-05 19:30:39,351 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 07:30:37" (1/1) ...
[2025-02-05 19:30:39,351 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 07:30:37" (1/1) ...
[2025-02-05 19:30:39,836 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 07:30:37" (1/1) ...
[2025-02-05 19:30:40,167 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 19:30:40,168 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 07:30:37" (1/1) ...
[2025-02-05 19:30:40,168 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 07:30:37" (1/1) ...
[2025-02-05 19:30:40,523 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 07:30:37" (1/1) ...
[2025-02-05 19:30:40,572 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 07:30:37" (1/1) ...
[2025-02-05 19:30:40,629 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 07:30:37" (1/1) ...
[2025-02-05 19:30:40,671 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 07:30:37" (1/1) ...
[2025-02-05 19:30:40,850 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-02-05 19:30:40,851 INFO  L112        PluginConnector]: ------------------------IcfgBuilder----------------------------
[2025-02-05 19:30:40,851 INFO  L270        PluginConnector]: Initializing IcfgBuilder...
[2025-02-05 19:30:40,851 INFO  L274        PluginConnector]: IcfgBuilder initialized
[2025-02-05 19:30:40,852 INFO  L184        PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 07:30:37" (1/1) ...
[2025-02-05 19:30:40,857 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-02-05 19:30:40,868 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2025-02-05 19:30:40,885 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 19:30:40,892 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 19:30:40,910 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2025-02-05 19:30:40,910 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2025-02-05 19:30:40,910 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2025-02-05 19:30:40,910 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2025-02-05 19:30:41,704 INFO  L257             CfgBuilder]: Building ICFG
[2025-02-05 19:30:41,706 INFO  L287             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-02-05 19:31:11,970 INFO  L?                        ?]: Removed 8029 outVars from TransFormulas that were not future-live.
[2025-02-05 19:31:11,970 INFO  L308             CfgBuilder]: Performing block encoding
[2025-02-05 19:31:12,403 INFO  L332             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2025-02-05 19:31:12,403 INFO  L337             CfgBuilder]: Removed 0 assume(true) statements.
[2025-02-05 19:31:12,404 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 07:31:12 BoogieIcfgContainer
[2025-02-05 19:31:12,404 INFO  L131        PluginConnector]: ------------------------ END IcfgBuilder----------------------------
[2025-02-05 19:31:12,406 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-02-05 19:31:12,406 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-02-05 19:31:12,410 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-02-05 19:31:12,411 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 07:30:36" (1/3) ...
[2025-02-05 19:31:12,411 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f13619a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 07:31:12, skipping insertion in model container
[2025-02-05 19:31:12,411 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 07:30:37" (2/3) ...
[2025-02-05 19:31:12,411 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f13619a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 07:31:12, skipping insertion in model container
[2025-02-05 19:31:12,411 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 07:31:12" (3/3) ...
[2025-02-05 19:31:12,413 INFO  L128   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.mcs.6.prop1-back-serstep.c
[2025-02-05 19:31:12,429 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-02-05 19:31:12,432 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.mcs.6.prop1-back-serstep.c that has 1 procedures, 5106 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2025-02-05 19:31:12,575 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-02-05 19:31:12,588 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;@6d311e6d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-02-05 19:31:12,589 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-02-05 19:31:12,605 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 5106 states, 5104 states have (on average 1.4998040752351096) internal successors, (7655), 5105 states have internal predecessors, (7655), 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 19:31:12,633 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 548
[2025-02-05 19:31:12,633 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-05 19:31:12,634 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:31:12,635 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-05 19:31:12,640 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-05 19:31:12,640 INFO  L85        PathProgramCache]: Analyzing trace with hash 595041978, now seen corresponding path program 1 times
[2025-02-05 19:31:12,647 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-05 19:31:12,648 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041297333]
[2025-02-05 19:31:12,648 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-05 19:31:12,649 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-05 19:31:12,850 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 547 statements into 1 equivalence classes.
[2025-02-05 19:31:13,343 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 547 of 547 statements.
[2025-02-05 19:31:13,344 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-05 19:31:13,345 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-05 19:31:16,190 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 19:31:16,191 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-05 19:31:16,192 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041297333]
[2025-02-05 19:31:16,193 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041297333] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-05 19:31:16,193 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-05 19:31:16,194 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-02-05 19:31:16,195 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089335870]
[2025-02-05 19:31:16,195 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-05 19:31:16,199 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-02-05 19:31:16,201 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-05 19:31:16,222 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-02-05 19:31:16,222 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-02-05 19:31:16,236 INFO  L87              Difference]: Start difference. First operand  has 5106 states, 5104 states have (on average 1.4998040752351096) internal successors, (7655), 5105 states have internal predecessors, (7655), 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 136.75) internal successors, (547), 4 states have internal predecessors, (547), 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 19:31:18,877 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-05 19:31:18,878 INFO  L93              Difference]: Finished difference Result 9937 states and 14901 transitions.
[2025-02-05 19:31:18,879 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-02-05 19:31:18,880 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 136.75) internal successors, (547), 4 states have internal predecessors, (547), 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 547
[2025-02-05 19:31:18,882 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-05 19:31:18,927 INFO  L225             Difference]: With dead ends: 9937
[2025-02-05 19:31:18,927 INFO  L226             Difference]: Without dead ends: 5105
[2025-02-05 19:31:18,944 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 19:31:18,947 INFO  L435           NwaCegarLoop]: 6375 mSDtfsCounter, 0 mSDsluCounter, 12745 mSDsCounter, 0 mSdLazyCounter, 3832 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19120 SdHoareTripleChecker+Invalid, 3832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time
[2025-02-05 19:31:18,947 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19120 Invalid, 3832 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 3832 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time]
[2025-02-05 19:31:18,972 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5105 states.
[2025-02-05 19:31:19,139 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5105 to 5105.
[2025-02-05 19:31:19,153 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5105 states, 5104 states have (on average 1.499412225705329) internal successors, (7653), 5104 states have internal predecessors, (7653), 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 19:31:19,175 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5105 states to 5105 states and 7653 transitions.
[2025-02-05 19:31:19,177 INFO  L78                 Accepts]: Start accepts. Automaton has 5105 states and 7653 transitions. Word has length 547
[2025-02-05 19:31:19,179 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-05 19:31:19,180 INFO  L471      AbstractCegarLoop]: Abstraction has 5105 states and 7653 transitions.
[2025-02-05 19:31:19,181 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 136.75) internal successors, (547), 4 states have internal predecessors, (547), 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 19:31:19,181 INFO  L276                IsEmpty]: Start isEmpty. Operand 5105 states and 7653 transitions.
[2025-02-05 19:31:19,192 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 549
[2025-02-05 19:31:19,192 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-05 19:31:19,193 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:31:19,194 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2025-02-05 19:31:19,194 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-05 19:31:19,195 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-05 19:31:19,196 INFO  L85        PathProgramCache]: Analyzing trace with hash 1271118300, now seen corresponding path program 1 times
[2025-02-05 19:31:19,196 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-05 19:31:19,196 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471373277]
[2025-02-05 19:31:19,196 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-05 19:31:19,197 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-05 19:31:19,371 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 548 statements into 1 equivalence classes.
[2025-02-05 19:31:19,514 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 548 of 548 statements.
[2025-02-05 19:31:19,514 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-05 19:31:19,514 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-05 19:31:20,510 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 19:31:20,510 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-05 19:31:20,510 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471373277]
[2025-02-05 19:31:20,510 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471373277] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-05 19:31:20,510 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-05 19:31:20,511 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-02-05 19:31:20,511 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129292634]
[2025-02-05 19:31:20,511 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-05 19:31:20,512 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-02-05 19:31:20,513 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-05 19:31:20,514 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-02-05 19:31:20,514 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-02-05 19:31:20,515 INFO  L87              Difference]: Start difference. First operand 5105 states and 7653 transitions. Second operand  has 4 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 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 19:31:22,787 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-05 19:31:22,787 INFO  L93              Difference]: Finished difference Result 9938 states and 14899 transitions.
[2025-02-05 19:31:22,788 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-02-05 19:31:22,788 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 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 548
[2025-02-05 19:31:22,789 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-05 19:31:22,809 INFO  L225             Difference]: With dead ends: 9938
[2025-02-05 19:31:22,809 INFO  L226             Difference]: Without dead ends: 5107
[2025-02-05 19:31:22,817 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 19:31:22,818 INFO  L435           NwaCegarLoop]: 6375 mSDtfsCounter, 0 mSDsluCounter, 12742 mSDsCounter, 0 mSdLazyCounter, 3835 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19117 SdHoareTripleChecker+Invalid, 3835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time
[2025-02-05 19:31:22,819 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19117 Invalid, 3835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3835 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time]
[2025-02-05 19:31:22,826 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5107 states.
[2025-02-05 19:31:22,900 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5107 to 5107.
[2025-02-05 19:31:22,909 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5107 states, 5106 states have (on average 1.4992166079122602) internal successors, (7655), 5106 states have internal predecessors, (7655), 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 19:31:22,919 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5107 states to 5107 states and 7655 transitions.
[2025-02-05 19:31:22,919 INFO  L78                 Accepts]: Start accepts. Automaton has 5107 states and 7655 transitions. Word has length 548
[2025-02-05 19:31:22,920 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-05 19:31:22,920 INFO  L471      AbstractCegarLoop]: Abstraction has 5107 states and 7655 transitions.
[2025-02-05 19:31:22,920 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 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 19:31:22,920 INFO  L276                IsEmpty]: Start isEmpty. Operand 5107 states and 7655 transitions.
[2025-02-05 19:31:22,930 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 550
[2025-02-05 19:31:22,930 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-05 19:31:22,930 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:31:22,931 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-02-05 19:31:22,931 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-05 19:31:22,932 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-05 19:31:22,932 INFO  L85        PathProgramCache]: Analyzing trace with hash -1613489419, now seen corresponding path program 1 times
[2025-02-05 19:31:22,932 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-05 19:31:22,932 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418717258]
[2025-02-05 19:31:22,933 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-05 19:31:22,933 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-05 19:31:23,046 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 549 statements into 1 equivalence classes.
[2025-02-05 19:31:23,155 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 549 of 549 statements.
[2025-02-05 19:31:23,156 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-05 19:31:23,156 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-05 19:31:24,265 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 19:31:24,266 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-05 19:31:24,266 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418717258]
[2025-02-05 19:31:24,266 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418717258] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-05 19:31:24,266 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-05 19:31:24,266 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-02-05 19:31:24,266 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759748537]
[2025-02-05 19:31:24,266 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-05 19:31:24,267 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-02-05 19:31:24,268 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-05 19:31:24,269 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-02-05 19:31:24,269 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2025-02-05 19:31:24,269 INFO  L87              Difference]: Start difference. First operand 5107 states and 7655 transitions. Second operand  has 5 states, 5 states have (on average 109.8) internal successors, (549), 5 states have internal predecessors, (549), 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 19:31:27,308 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-05 19:31:27,309 INFO  L93              Difference]: Finished difference Result 14751 states and 22114 transitions.
[2025-02-05 19:31:27,311 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2025-02-05 19:31:27,311 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 109.8) internal successors, (549), 5 states have internal predecessors, (549), 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 549
[2025-02-05 19:31:27,312 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-05 19:31:27,344 INFO  L225             Difference]: With dead ends: 14751
[2025-02-05 19:31:27,344 INFO  L226             Difference]: Without dead ends: 9918
[2025-02-05 19:31:27,354 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2025-02-05 19:31:27,355 INFO  L435           NwaCegarLoop]: 6373 mSDtfsCounter, 7082 mSDsluCounter, 18773 mSDsCounter, 0 mSdLazyCounter, 5049 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7082 SdHoareTripleChecker+Valid, 25146 SdHoareTripleChecker+Invalid, 5049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time
[2025-02-05 19:31:27,356 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [7082 Valid, 25146 Invalid, 5049 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 5049 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time]
[2025-02-05 19:31:27,371 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9918 states.
[2025-02-05 19:31:27,470 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9918 to 5913.
[2025-02-05 19:31:27,481 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5913 states, 5912 states have (on average 1.4991542625169147) internal successors, (8863), 5912 states have internal predecessors, (8863), 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 19:31:27,494 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5913 states to 5913 states and 8863 transitions.
[2025-02-05 19:31:27,494 INFO  L78                 Accepts]: Start accepts. Automaton has 5913 states and 8863 transitions. Word has length 549
[2025-02-05 19:31:27,495 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-05 19:31:27,495 INFO  L471      AbstractCegarLoop]: Abstraction has 5913 states and 8863 transitions.
[2025-02-05 19:31:27,496 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 109.8) internal successors, (549), 5 states have internal predecessors, (549), 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 19:31:27,496 INFO  L276                IsEmpty]: Start isEmpty. Operand 5913 states and 8863 transitions.
[2025-02-05 19:31:27,553 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2965
[2025-02-05 19:31:27,554 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-05 19:31:27,555 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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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]
[2025-02-05 19:31:27,556 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-02-05 19:31:27,556 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-05 19:31:27,558 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-05 19:31:27,559 INFO  L85        PathProgramCache]: Analyzing trace with hash 992245797, now seen corresponding path program 1 times
[2025-02-05 19:31:27,560 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-05 19:31:27,560 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439729820]
[2025-02-05 19:31:27,560 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-05 19:31:27,561 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-05 19:31:28,210 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2964 statements into 1 equivalence classes.
[2025-02-05 19:31:32,506 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2964 of 2964 statements.
[2025-02-05 19:31:32,507 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-05 19:31:32,507 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-05 19:31:39,791 INFO  L134       CoverageAnalysis]: Checked inductivity of 408 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 402 trivial. 0 not checked.
[2025-02-05 19:31:39,794 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-05 19:31:39,795 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439729820]
[2025-02-05 19:31:39,795 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439729820] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-05 19:31:39,795 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-02-05 19:31:39,795 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-02-05 19:31:39,795 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773328426]
[2025-02-05 19:31:39,795 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-05 19:31:39,800 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-02-05 19:31:39,804 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-05 19:31:39,807 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-02-05 19:31:39,807 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2025-02-05 19:31:39,812 INFO  L87              Difference]: Start difference. First operand 5913 states and 8863 transitions. Second operand  has 5 states, 5 states have (on average 512.6) internal successors, (2563), 5 states have internal predecessors, (2563), 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 19:31:41,791 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-05 19:31:41,791 INFO  L93              Difference]: Finished difference Result 10750 states and 16113 transitions.
[2025-02-05 19:31:41,793 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-02-05 19:31:41,798 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 512.6) internal successors, (2563), 5 states have internal predecessors, (2563), 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 2964
[2025-02-05 19:31:41,803 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-05 19:31:41,836 INFO  L225             Difference]: With dead ends: 10750
[2025-02-05 19:31:41,836 INFO  L226             Difference]: Without dead ends: 5917
[2025-02-05 19:31:41,846 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2025-02-05 19:31:41,847 INFO  L435           NwaCegarLoop]: 6375 mSDtfsCounter, 0 mSDsluCounter, 12742 mSDsCounter, 0 mSdLazyCounter, 3836 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19117 SdHoareTripleChecker+Invalid, 3837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time
[2025-02-05 19:31:41,849 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19117 Invalid, 3837 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3836 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time]
[2025-02-05 19:31:41,859 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5917 states.
[2025-02-05 19:31:41,935 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5917 to 5913.
[2025-02-05 19:31:41,945 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5913 states, 5912 states have (on average 1.4991542625169147) internal successors, (8863), 5912 states have internal predecessors, (8863), 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 19:31:41,955 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5913 states to 5913 states and 8863 transitions.
[2025-02-05 19:31:41,955 INFO  L78                 Accepts]: Start accepts. Automaton has 5913 states and 8863 transitions. Word has length 2964
[2025-02-05 19:31:41,961 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-05 19:31:41,961 INFO  L471      AbstractCegarLoop]: Abstraction has 5913 states and 8863 transitions.
[2025-02-05 19:31:41,962 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 512.6) internal successors, (2563), 5 states have internal predecessors, (2563), 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 19:31:41,963 INFO  L276                IsEmpty]: Start isEmpty. Operand 5913 states and 8863 transitions.
[2025-02-05 19:31:42,016 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2966
[2025-02-05 19:31:42,017 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-05 19:31:42,019 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2025-02-05 19:31:42,019 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-02-05 19:31:42,019 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-05 19:31:42,021 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-05 19:31:42,022 INFO  L85        PathProgramCache]: Analyzing trace with hash -1711749135, now seen corresponding path program 1 times
[2025-02-05 19:31:42,022 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-05 19:31:42,023 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444890755]
[2025-02-05 19:31:42,023 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-05 19:31:42,023 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-05 19:31:42,511 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2965 statements into 1 equivalence classes.