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


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


Checking for ERROR reachability
Using default analysis
Version 023d838f
Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.reader_writer.2.prop1-back-serstep.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6d6d98f6312c677f7dacd7debb2d7611ced7e02bab50b869278cee663e2db929
--- Real Ultimate output ---
This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m
[2024-11-10 02:43:19,323 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-10 02:43:19,398 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf
[2024-11-10 02:43:19,402 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-10 02:43:19,403 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-10 02:43:19,431 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-10 02:43:19,431 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-10 02:43:19,432 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-10 02:43:19,432 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-10 02:43:19,433 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-10 02:43:19,433 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-10 02:43:19,433 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-10 02:43:19,434 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-10 02:43:19,434 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-10 02:43:19,435 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-10 02:43:19,435 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-10 02:43:19,440 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-10 02:43:19,440 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-10 02:43:19,440 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-10 02:43:19,441 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-10 02:43:19,441 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-10 02:43:19,442 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-10 02:43:19,445 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-10 02:43:19,445 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-10 02:43:19,446 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-10 02:43:19,446 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-10 02:43:19,446 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-10 02:43:19,446 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-10 02:43:19,446 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-10 02:43:19,447 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-10 02:43:19,447 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-10 02:43:19,447 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-10 02:43:19,448 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-10 02:43:19,448 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-10 02:43:19,448 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-10 02:43:19,449 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-10 02:43:19,449 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-10 02:43:19,450 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-10 02:43:19,450 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-10 02:43:19,450 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d6d98f6312c677f7dacd7debb2d7611ced7e02bab50b869278cee663e2db929
[2024-11-10 02:43:19,748 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-10 02:43:19,778 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-10 02:43:19,783 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-10 02:43:19,785 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-10 02:43:19,786 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-10 02:43:19,787 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.reader_writer.2.prop1-back-serstep.c
[2024-11-10 02:43:21,220 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-10 02:43:21,623 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-10 02:43:21,624 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.reader_writer.2.prop1-back-serstep.c
[2024-11-10 02:43:21,653 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33d94ff6a/17ab58f8a95b43f9aabd43020b513ff1/FLAG86390de78
[2024-11-10 02:43:21,668 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33d94ff6a/17ab58f8a95b43f9aabd43020b513ff1
[2024-11-10 02:43:21,671 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-10 02:43:21,673 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-10 02:43:21,674 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-10 02:43:21,674 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-10 02:43:21,679 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-10 02:43:21,680 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:43:21" (1/1) ...
[2024-11-10 02:43:21,681 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a8fbd86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:21, skipping insertion in model container
[2024-11-10 02:43:21,681 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:43:21" (1/1) ...
[2024-11-10 02:43:21,774 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-10 02:43:22,024 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.reader_writer.2.prop1-back-serstep.c[1181,1194]
[2024-11-10 02:43:22,576 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-10 02:43:22,586 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-10 02:43:22,597 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.reader_writer.2.prop1-back-serstep.c[1181,1194]
[2024-11-10 02:43:22,926 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-10 02:43:22,945 INFO  L204         MainTranslator]: Completed translation
[2024-11-10 02:43:22,946 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:22 WrapperNode
[2024-11-10 02:43:22,946 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-10 02:43:22,947 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-10 02:43:22,947 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-10 02:43:22,947 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-10 02:43:22,952 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:22" (1/1) ...
[2024-11-10 02:43:23,139 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:22" (1/1) ...
[2024-11-10 02:43:25,021 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 15977
[2024-11-10 02:43:25,022 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-10 02:43:25,023 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-10 02:43:25,023 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-10 02:43:25,023 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-10 02:43:25,032 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:22" (1/1) ...
[2024-11-10 02:43:25,032 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:22" (1/1) ...
[2024-11-10 02:43:25,643 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:22" (1/1) ...
[2024-11-10 02:43:25,990 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].
[2024-11-10 02:43:25,990 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:22" (1/1) ...
[2024-11-10 02:43:25,991 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:22" (1/1) ...
[2024-11-10 02:43:26,737 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:22" (1/1) ...
[2024-11-10 02:43:26,824 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:22" (1/1) ...
[2024-11-10 02:43:26,905 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:22" (1/1) ...
[2024-11-10 02:43:26,960 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:22" (1/1) ...
[2024-11-10 02:43:27,273 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-10 02:43:27,274 INFO  L112        PluginConnector]: ------------------------IcfgBuilder----------------------------
[2024-11-10 02:43:27,274 INFO  L270        PluginConnector]: Initializing IcfgBuilder...
[2024-11-10 02:43:27,274 INFO  L274        PluginConnector]: IcfgBuilder initialized
[2024-11-10 02:43:27,275 INFO  L184        PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:22" (1/1) ...
[2024-11-10 02:43:27,281 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-10 02:43:27,296 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-10 02:43:27,321 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-10 02:43:27,329 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-10 02:43:27,374 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-10 02:43:27,374 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-10 02:43:27,374 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-10 02:43:27,375 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-10 02:43:28,191 INFO  L256             CfgBuilder]: Building ICFG
[2024-11-10 02:43:28,193 INFO  L286             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-10 02:43:59,437 INFO  L?                        ?]: Removed 8693 outVars from TransFormulas that were not future-live.
[2024-11-10 02:43:59,437 INFO  L307             CfgBuilder]: Performing block encoding
[2024-11-10 02:43:59,864 INFO  L331             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-10 02:43:59,865 INFO  L336             CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-10 02:43:59,865 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:43:59 BoogieIcfgContainer
[2024-11-10 02:43:59,865 INFO  L131        PluginConnector]: ------------------------ END IcfgBuilder----------------------------
[2024-11-10 02:43:59,868 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-10 02:43:59,868 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-10 02:43:59,871 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-10 02:43:59,871 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 02:43:21" (1/3) ...
[2024-11-10 02:43:59,872 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@232a45b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:43:59, skipping insertion in model container
[2024-11-10 02:43:59,872 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:43:22" (2/3) ...
[2024-11-10 02:43:59,872 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@232a45b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:43:59, skipping insertion in model container
[2024-11-10 02:43:59,872 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:43:59" (3/3) ...
[2024-11-10 02:43:59,873 INFO  L112   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.reader_writer.2.prop1-back-serstep.c
[2024-11-10 02:43:59,891 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-10 02:43:59,892 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-10 02:44:00,035 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-10 02:44:00,042 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;@c06e09b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-10 02:44:00,042 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-10 02:44:00,061 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 5721 states, 5719 states have (on average 1.499562860639972) internal successors, (8576), 5720 states have internal predecessors, (8576), 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)
[2024-11-10 02:44:00,096 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 411
[2024-11-10 02:44:00,097 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-10 02:44:00,098 INFO  L215           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]
[2024-11-10 02:44:00,098 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-10 02:44:00,103 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-10 02:44:00,104 INFO  L85        PathProgramCache]: Analyzing trace with hash -874273374, now seen corresponding path program 1 times
[2024-11-10 02:44:00,112 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-10 02:44:00,113 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102117720]
[2024-11-10 02:44:00,113 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-10 02:44:00,113 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-10 02:44:00,645 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-10 02:44:02,089 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-10 02:44:02,091 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-10 02:44:02,091 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102117720]
[2024-11-10 02:44:02,092 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102117720] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-10 02:44:02,092 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-10 02:44:02,092 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-10 02:44:02,094 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215485140]
[2024-11-10 02:44:02,096 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-10 02:44:02,101 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-10 02:44:02,103 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-10 02:44:02,130 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-10 02:44:02,131 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-10 02:44:02,146 INFO  L87              Difference]: Start difference. First operand  has 5721 states, 5719 states have (on average 1.499562860639972) internal successors, (8576), 5720 states have internal predecessors, (8576), 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 102.5) internal successors, (410), 4 states have internal predecessors, (410), 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)
[2024-11-10 02:44:05,142 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-10 02:44:05,143 INFO  L93              Difference]: Finished difference Result 11257 states and 16879 transitions.
[2024-11-10 02:44:05,145 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-10 02:44:05,146 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 102.5) internal successors, (410), 4 states have internal predecessors, (410), 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 410
[2024-11-10 02:44:05,148 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-10 02:44:05,188 INFO  L225             Difference]: With dead ends: 11257
[2024-11-10 02:44:05,188 INFO  L226             Difference]: Without dead ends: 5718
[2024-11-10 02:44:05,202 INFO  L431           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
[2024-11-10 02:44:05,206 INFO  L432           NwaCegarLoop]: 7141 mSDtfsCounter, 0 mSDsluCounter, 14277 mSDsCounter, 0 mSdLazyCounter, 4291 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 21418 SdHoareTripleChecker+Invalid, 4291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time
[2024-11-10 02:44:05,207 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 21418 Invalid, 4291 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 4291 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time]
[2024-11-10 02:44:05,237 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5718 states.
[2024-11-10 02:44:05,387 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5718 to 5718.
[2024-11-10 02:44:05,400 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5718 states, 5717 states have (on average 1.4993877907993702) internal successors, (8572), 5717 states have internal predecessors, (8572), 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)
[2024-11-10 02:44:05,418 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5718 states to 5718 states and 8572 transitions.
[2024-11-10 02:44:05,420 INFO  L78                 Accepts]: Start accepts. Automaton has 5718 states and 8572 transitions. Word has length 410
[2024-11-10 02:44:05,422 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-10 02:44:05,425 INFO  L471      AbstractCegarLoop]: Abstraction has 5718 states and 8572 transitions.
[2024-11-10 02:44:05,426 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 102.5) internal successors, (410), 4 states have internal predecessors, (410), 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)
[2024-11-10 02:44:05,426 INFO  L276                IsEmpty]: Start isEmpty. Operand 5718 states and 8572 transitions.
[2024-11-10 02:44:05,434 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 412
[2024-11-10 02:44:05,435 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-10 02:44:05,435 INFO  L215           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]
[2024-11-10 02:44:05,436 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-10 02:44:05,436 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-10 02:44:05,437 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-10 02:44:05,437 INFO  L85        PathProgramCache]: Analyzing trace with hash -1187608866, now seen corresponding path program 1 times
[2024-11-10 02:44:05,438 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-10 02:44:05,438 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473254668]
[2024-11-10 02:44:05,438 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-10 02:44:05,439 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-10 02:44:05,612 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-10 02:44:06,217 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-10 02:44:06,218 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-10 02:44:06,218 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473254668]
[2024-11-10 02:44:06,218 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473254668] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-10 02:44:06,218 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-10 02:44:06,218 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-10 02:44:06,218 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76496164]
[2024-11-10 02:44:06,218 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-10 02:44:06,220 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-10 02:44:06,220 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-10 02:44:06,222 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-10 02:44:06,222 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-10 02:44:06,223 INFO  L87              Difference]: Start difference. First operand 5718 states and 8572 transitions. Second operand  has 4 states, 4 states have (on average 102.75) internal successors, (411), 4 states have internal predecessors, (411), 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)
[2024-11-10 02:44:08,773 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-10 02:44:08,773 INFO  L93              Difference]: Finished difference Result 11256 states and 16875 transitions.
[2024-11-10 02:44:08,774 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-10 02:44:08,774 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 102.75) internal successors, (411), 4 states have internal predecessors, (411), 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 411
[2024-11-10 02:44:08,776 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-10 02:44:08,799 INFO  L225             Difference]: With dead ends: 11256
[2024-11-10 02:44:08,799 INFO  L226             Difference]: Without dead ends: 5720
[2024-11-10 02:44:08,808 INFO  L431           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
[2024-11-10 02:44:08,810 INFO  L432           NwaCegarLoop]: 7141 mSDtfsCounter, 0 mSDsluCounter, 14274 mSDsCounter, 0 mSdLazyCounter, 4294 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 21415 SdHoareTripleChecker+Invalid, 4294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time
[2024-11-10 02:44:08,812 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 21415 Invalid, 4294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4294 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time]
[2024-11-10 02:44:08,822 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5720 states.
[2024-11-10 02:44:08,900 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5720 to 5720.
[2024-11-10 02:44:08,911 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5720 states, 5719 states have (on average 1.4992131491519496) internal successors, (8574), 5719 states have internal predecessors, (8574), 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)
[2024-11-10 02:44:08,923 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5720 states to 5720 states and 8574 transitions.
[2024-11-10 02:44:08,923 INFO  L78                 Accepts]: Start accepts. Automaton has 5720 states and 8574 transitions. Word has length 411
[2024-11-10 02:44:08,924 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-10 02:44:08,925 INFO  L471      AbstractCegarLoop]: Abstraction has 5720 states and 8574 transitions.
[2024-11-10 02:44:08,926 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 102.75) internal successors, (411), 4 states have internal predecessors, (411), 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)
[2024-11-10 02:44:08,926 INFO  L276                IsEmpty]: Start isEmpty. Operand 5720 states and 8574 transitions.
[2024-11-10 02:44:08,931 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 413
[2024-11-10 02:44:08,931 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-10 02:44:08,932 INFO  L215           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]
[2024-11-10 02:44:08,932 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-10 02:44:08,933 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-10 02:44:08,934 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-10 02:44:08,934 INFO  L85        PathProgramCache]: Analyzing trace with hash 1586082951, now seen corresponding path program 1 times
[2024-11-10 02:44:08,934 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-10 02:44:08,935 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514343800]
[2024-11-10 02:44:08,935 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-10 02:44:08,935 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-10 02:44:09,104 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-10 02:44:09,688 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-10 02:44:09,690 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-10 02:44:09,690 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514343800]
[2024-11-10 02:44:09,690 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514343800] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-10 02:44:09,690 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-10 02:44:09,691 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-10 02:44:09,691 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059158758]
[2024-11-10 02:44:09,691 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-10 02:44:09,692 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-10 02:44:09,692 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-10 02:44:09,693 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-10 02:44:09,695 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-10 02:44:09,695 INFO  L87              Difference]: Start difference. First operand 5720 states and 8574 transitions. Second operand  has 4 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 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)
[2024-11-10 02:44:11,936 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-10 02:44:11,936 INFO  L93              Difference]: Finished difference Result 11260 states and 16879 transitions.
[2024-11-10 02:44:11,936 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-10 02:44:11,937 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 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 412
[2024-11-10 02:44:11,938 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-10 02:44:11,957 INFO  L225             Difference]: With dead ends: 11260
[2024-11-10 02:44:11,957 INFO  L226             Difference]: Without dead ends: 5722
[2024-11-10 02:44:11,966 INFO  L431           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
[2024-11-10 02:44:11,968 INFO  L432           NwaCegarLoop]: 7141 mSDtfsCounter, 0 mSDsluCounter, 14274 mSDsCounter, 0 mSdLazyCounter, 4294 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 21415 SdHoareTripleChecker+Invalid, 4294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time
[2024-11-10 02:44:11,968 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 21415 Invalid, 4294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4294 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time]
[2024-11-10 02:44:11,979 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5722 states.
[2024-11-10 02:44:12,049 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5722 to 5722.
[2024-11-10 02:44:12,064 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5722 states, 5721 states have (on average 1.499038629610208) internal successors, (8576), 5721 states have internal predecessors, (8576), 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)
[2024-11-10 02:44:12,076 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5722 states to 5722 states and 8576 transitions.
[2024-11-10 02:44:12,077 INFO  L78                 Accepts]: Start accepts. Automaton has 5722 states and 8576 transitions. Word has length 412
[2024-11-10 02:44:12,078 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-10 02:44:12,078 INFO  L471      AbstractCegarLoop]: Abstraction has 5722 states and 8576 transitions.
[2024-11-10 02:44:12,079 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 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)
[2024-11-10 02:44:12,080 INFO  L276                IsEmpty]: Start isEmpty. Operand 5722 states and 8576 transitions.
[2024-11-10 02:44:12,085 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 414
[2024-11-10 02:44:12,085 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-10 02:44:12,088 INFO  L215           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]
[2024-11-10 02:44:12,088 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-10 02:44:12,088 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-10 02:44:12,088 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-10 02:44:12,089 INFO  L85        PathProgramCache]: Analyzing trace with hash 333635193, now seen corresponding path program 1 times
[2024-11-10 02:44:12,089 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-10 02:44:12,089 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980932117]
[2024-11-10 02:44:12,090 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-10 02:44:12,090 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-10 02:44:12,240 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-10 02:44:12,862 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-10 02:44:12,862 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-10 02:44:12,863 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980932117]
[2024-11-10 02:44:12,863 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980932117] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-10 02:44:12,863 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-10 02:44:12,864 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-10 02:44:12,864 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898541955]
[2024-11-10 02:44:12,864 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-10 02:44:12,865 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-10 02:44:12,865 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-10 02:44:12,866 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-10 02:44:12,866 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-10 02:44:12,866 INFO  L87              Difference]: Start difference. First operand 5722 states and 8576 transitions. Second operand  has 5 states, 5 states have (on average 82.6) internal successors, (413), 5 states have internal predecessors, (413), 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)
[2024-11-10 02:44:16,370 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-10 02:44:16,371 INFO  L93              Difference]: Finished difference Result 16787 states and 25164 transitions.
[2024-11-10 02:44:16,371 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-10 02:44:16,372 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 82.6) internal successors, (413), 5 states have internal predecessors, (413), 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 413
[2024-11-10 02:44:16,372 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-10 02:44:16,405 INFO  L225             Difference]: With dead ends: 16787
[2024-11-10 02:44:16,405 INFO  L226             Difference]: Without dead ends: 11247
[2024-11-10 02:44:16,415 INFO  L431           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
[2024-11-10 02:44:16,416 INFO  L432           NwaCegarLoop]: 7139 mSDtfsCounter, 8149 mSDsluCounter, 21186 mSDsCounter, 0 mSdLazyCounter, 5684 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8149 SdHoareTripleChecker+Valid, 28325 SdHoareTripleChecker+Invalid, 5684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time
[2024-11-10 02:44:16,416 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [8149 Valid, 28325 Invalid, 5684 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 5684 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time]
[2024-11-10 02:44:16,435 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11247 states.
[2024-11-10 02:44:16,553 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11247 to 6342.
[2024-11-10 02:44:16,562 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6342 states, 6341 states have (on average 1.4991326289228828) internal successors, (9506), 6341 states have internal predecessors, (9506), 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)
[2024-11-10 02:44:16,573 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6342 states to 6342 states and 9506 transitions.
[2024-11-10 02:44:16,573 INFO  L78                 Accepts]: Start accepts. Automaton has 6342 states and 9506 transitions. Word has length 413
[2024-11-10 02:44:16,574 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-10 02:44:16,574 INFO  L471      AbstractCegarLoop]: Abstraction has 6342 states and 9506 transitions.
[2024-11-10 02:44:16,574 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 82.6) internal successors, (413), 5 states have internal predecessors, (413), 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)
[2024-11-10 02:44:16,575 INFO  L276                IsEmpty]: Start isEmpty. Operand 6342 states and 9506 transitions.
[2024-11-10 02:44:16,852 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3181
[2024-11-10 02:44:16,852 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-10 02:44:16,855 INFO  L215           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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[2024-11-10 02:44:16,855 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-10 02:44:16,855 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-10 02:44:16,856 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-10 02:44:16,857 INFO  L85        PathProgramCache]: Analyzing trace with hash 7005847, now seen corresponding path program 1 times
[2024-11-10 02:44:16,857 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-10 02:44:16,857 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963307246]
[2024-11-10 02:44:16,858 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-10 02:44:16,858 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-10 02:44:22,709 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-10 02:44:28,793 INFO  L134       CoverageAnalysis]: Checked inductivity of 316 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked.
[2024-11-10 02:44:28,794 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-10 02:44:28,794 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963307246]
[2024-11-10 02:44:28,794 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963307246] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-10 02:44:28,794 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-10 02:44:28,795 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-10 02:44:28,795 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262569478]
[2024-11-10 02:44:28,795 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-10 02:44:28,798 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-10 02:44:28,798 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-10 02:44:28,801 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-10 02:44:28,801 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-10 02:44:28,802 INFO  L87              Difference]: Start difference. First operand 6342 states and 9506 transitions. Second operand  has 4 states, 4 states have (on average 718.25) internal successors, (2873), 4 states have internal predecessors, (2873), 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)
[2024-11-10 02:44:30,795 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-10 02:44:30,795 INFO  L93              Difference]: Finished difference Result 11888 states and 17819 transitions.
[2024-11-10 02:44:30,796 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-10 02:44:30,797 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 718.25) internal successors, (2873), 4 states have internal predecessors, (2873), 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 3180
[2024-11-10 02:44:30,802 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-10 02:44:30,814 INFO  L225             Difference]: With dead ends: 11888
[2024-11-10 02:44:30,814 INFO  L226             Difference]: Without dead ends: 6346
[2024-11-10 02:44:30,820 INFO  L431           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
[2024-11-10 02:44:30,821 INFO  L432           NwaCegarLoop]: 7141 mSDtfsCounter, 0 mSDsluCounter, 14274 mSDsCounter, 0 mSdLazyCounter, 4294 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 21415 SdHoareTripleChecker+Invalid, 4294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time
[2024-11-10 02:44:30,821 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 21415 Invalid, 4294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4294 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time]
[2024-11-10 02:44:30,830 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6346 states.
[2024-11-10 02:44:30,918 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6346 to 6344.
[2024-11-10 02:44:30,929 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6344 states, 6343 states have (on average 1.4989752483052183) internal successors, (9508), 6343 states have internal predecessors, (9508), 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)
[2024-11-10 02:44:30,942 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6344 states to 6344 states and 9508 transitions.
[2024-11-10 02:44:30,942 INFO  L78                 Accepts]: Start accepts. Automaton has 6344 states and 9508 transitions. Word has length 3180
[2024-11-10 02:44:30,948 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-10 02:44:30,948 INFO  L471      AbstractCegarLoop]: Abstraction has 6344 states and 9508 transitions.
[2024-11-10 02:44:30,950 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 718.25) internal successors, (2873), 4 states have internal predecessors, (2873), 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)
[2024-11-10 02:44:30,950 INFO  L276                IsEmpty]: Start isEmpty. Operand 6344 states and 9508 transitions.