/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/eca-rers2012/Problem07_label40.c


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-20 16:03:31,502 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-20 16:03:31,566 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2023-12-20 16:03:31,570 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-20 16:03:31,571 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-20 16:03:31,591 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-20 16:03:31,592 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-20 16:03:31,592 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-20 16:03:31,592 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-20 16:03:31,595 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-20 16:03:31,595 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-20 16:03:31,596 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-20 16:03:31,596 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-20 16:03:31,597 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-20 16:03:31,597 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-20 16:03:31,597 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-20 16:03:31,598 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-20 16:03:31,598 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-12-20 16:03:31,598 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-12-20 16:03:31,598 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-12-20 16:03:31,598 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-20 16:03:31,599 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-20 16:03:31,599 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-20 16:03:31,599 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-20 16:03:31,599 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-20 16:03:31,599 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-12-20 16:03:31,599 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-20 16:03:31,600 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-20 16:03:31,600 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-20 16:03:31,600 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-20 16:03:31,601 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-20 16:03:31,601 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-20 16:03:31,601 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-20 16:03:31,601 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-20 16:03:31,601 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-20 16:03:31,601 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-20 16:03:31,602 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-12-20 16:03:31,602 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-12-20 16:03:31,602 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-20 16:03:31,602 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-20 16:03:31,602 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-20 16:03:31,602 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-20 16:03:31,602 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-20 16:03:31,602 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false
[2023-12-20 16:03:31,791 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-20 16:03:31,811 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-20 16:03:31,814 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-20 16:03:31,815 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-20 16:03:31,815 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-20 16:03:31,816 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem07_label40.c
[2023-12-20 16:03:32,949 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-20 16:03:34,038 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-20 16:03:34,040 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem07_label40.c
[2023-12-20 16:03:34,138 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7f4a04f8/d5f8c1ea94844c9aadf1cb9e1214243a/FLAGbf5689068
[2023-12-20 16:03:34,148 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7f4a04f8/d5f8c1ea94844c9aadf1cb9e1214243a
[2023-12-20 16:03:34,149 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-20 16:03:34,150 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-20 16:03:34,151 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-20 16:03:34,151 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-20 16:03:34,154 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-20 16:03:34,155 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 04:03:34" (1/1) ...
[2023-12-20 16:03:34,155 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@243a63fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:03:34, skipping insertion in model container
[2023-12-20 16:03:34,156 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 04:03:34" (1/1) ...
[2023-12-20 16:03:34,712 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-20 16:03:41,389 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem07_label40.c[2767965,2767978]
[2023-12-20 16:03:41,444 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-20 16:03:41,451 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-20 16:03:45,393 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem07_label40.c[2767965,2767978]
[2023-12-20 16:03:45,401 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-20 16:03:46,275 INFO  L206         MainTranslator]: Completed translation
[2023-12-20 16:03:46,275 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:03:46 WrapperNode
[2023-12-20 16:03:46,275 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-20 16:03:46,276 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-20 16:03:46,276 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-20 16:03:46,276 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-20 16:03:46,281 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:03:46" (1/1) ...
[2023-12-20 16:03:47,142 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:03:46" (1/1) ...
[2023-12-20 16:03:49,086 INFO  L138                Inliner]: procedures = 59, calls = 53, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 83819
[2023-12-20 16:03:49,087 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-20 16:03:49,087 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-20 16:03:49,087 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-20 16:03:49,088 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-20 16:03:49,095 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:03:46" (1/1) ...
[2023-12-20 16:03:49,095 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:03:46" (1/1) ...
[2023-12-20 16:03:49,400 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:03:46" (1/1) ...
[2023-12-20 16:03:49,801 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].
[2023-12-20 16:03:49,801 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:03:46" (1/1) ...
[2023-12-20 16:03:49,801 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:03:46" (1/1) ...
[2023-12-20 16:03:50,637 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:03:46" (1/1) ...
[2023-12-20 16:03:50,787 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:03:46" (1/1) ...
[2023-12-20 16:03:50,871 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:03:46" (1/1) ...
[2023-12-20 16:03:50,957 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:03:46" (1/1) ...
[2023-12-20 16:03:51,396 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-20 16:03:51,397 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-20 16:03:51,397 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-20 16:03:51,398 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-20 16:03:51,398 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:03:46" (1/1) ...
[2023-12-20 16:03:51,407 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-20 16:03:51,414 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-20 16:03:51,449 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)
[2023-12-20 16:03:51,452 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
[2023-12-20 16:03:51,470 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-20 16:03:51,470 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-12-20 16:03:51,471 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-20 16:03:51,471 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-20 16:03:51,584 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-20 16:03:51,586 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-20 16:04:22,285 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-20 16:04:22,405 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-20 16:04:22,405 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-20 16:04:22,405 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 04:04:22 BoogieIcfgContainer
[2023-12-20 16:04:22,405 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-20 16:04:22,408 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-20 16:04:22,408 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-20 16:04:22,411 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-20 16:04:22,411 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 04:03:34" (1/3) ...
[2023-12-20 16:04:22,412 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@114ead83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 04:04:22, skipping insertion in model container
[2023-12-20 16:04:22,412 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 04:03:46" (2/3) ...
[2023-12-20 16:04:22,412 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@114ead83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 04:04:22, skipping insertion in model container
[2023-12-20 16:04:22,413 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 04:04:22" (3/3) ...
[2023-12-20 16:04:22,414 INFO  L112   eAbstractionObserver]: Analyzing ICFG Problem07_label40.c
[2023-12-20 16:04:22,426 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-20 16:04:22,426 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-20 16:04:22,563 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-20 16:04:22,568 INFO  L357      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, mHoare=true, 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;@4561a3f2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-20 16:04:22,568 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-20 16:04:22,596 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 10195 states, 10193 states have (on average 1.9952908859020897) internal successors, (20338), 10194 states have internal predecessors, (20338), 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)
[2023-12-20 16:04:23,247 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10093
[2023-12-20 16:04:23,247 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-20 16:04:23,251 INFO  L195           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, 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[2023-12-20 16:04:23,252 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-20 16:04:23,258 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-20 16:04:23,261 INFO  L85        PathProgramCache]: Analyzing trace with hash -412255220, now seen corresponding path program 1 times
[2023-12-20 16:04:23,267 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-20 16:04:23,267 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792100075]
[2023-12-20 16:04:23,269 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 16:04:23,269 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-20 16:04:25,263 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-20 16:04:45,213 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-20 16:04:45,214 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-20 16:04:45,214 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792100075]
[2023-12-20 16:04:45,215 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792100075] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-20 16:04:45,215 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-20 16:04:45,215 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-20 16:04:45,216 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270436652]
[2023-12-20 16:04:45,217 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-20 16:04:45,251 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-20 16:04:45,251 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-20 16:04:45,307 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-20 16:04:45,307 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-20 16:04:45,351 INFO  L87              Difference]: Start difference. First operand  has 10195 states, 10193 states have (on average 1.9952908859020897) internal successors, (20338), 10194 states have internal predecessors, (20338), 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 2 states, 2 states have (on average 5046.0) internal successors, (10092), 2 states have internal predecessors, (10092), 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)
[2023-12-20 16:04:45,842 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-20 16:04:45,842 INFO  L93              Difference]: Finished difference Result 20389 states and 40675 transitions.
[2023-12-20 16:04:45,843 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-12-20 16:04:45,847 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 5046.0) internal successors, (10092), 2 states have internal predecessors, (10092), 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 10092
[2023-12-20 16:04:45,860 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-20 16:04:45,901 INFO  L225             Difference]: With dead ends: 20389
[2023-12-20 16:04:45,901 INFO  L226             Difference]: Without dead ends: 10193
[2023-12-20 16:04:45,918 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-20 16:04:45,922 INFO  L413           NwaCegarLoop]: 20273 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20273 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-20 16:04:45,923 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20273 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-20 16:04:45,945 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10193 states.
[2023-12-20 16:04:46,096 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10193 to 10193.
[2023-12-20 16:04:46,121 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 10193 states, 10192 states have (on average 1.9891091051805339) internal successors, (20273), 10192 states have internal predecessors, (20273), 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)
[2023-12-20 16:04:46,142 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 10193 states to 10193 states and 20273 transitions.
[2023-12-20 16:04:46,143 INFO  L78                 Accepts]: Start accepts. Automaton has 10193 states and 20273 transitions. Word has length 10092
[2023-12-20 16:04:46,157 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-20 16:04:46,158 INFO  L495      AbstractCegarLoop]: Abstraction has 10193 states and 20273 transitions.
[2023-12-20 16:04:46,160 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 5046.0) internal successors, (10092), 2 states have internal predecessors, (10092), 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)
[2023-12-20 16:04:46,160 INFO  L276                IsEmpty]: Start isEmpty. Operand 10193 states and 20273 transitions.
[2023-12-20 16:04:47,016 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10093
[2023-12-20 16:04:47,017 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-20 16:04:47,020 INFO  L195           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, 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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]
[2023-12-20 16:04:47,034 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-12-20 16:04:47,035 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-20 16:04:47,039 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-20 16:04:47,042 INFO  L85        PathProgramCache]: Analyzing trace with hash 1965178017, now seen corresponding path program 1 times
[2023-12-20 16:04:47,042 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-20 16:04:47,057 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942529966]
[2023-12-20 16:04:47,060 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 16:04:47,060 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-20 16:04:49,196 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-20 16:05:13,922 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-20 16:05:13,922 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-20 16:05:13,922 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942529966]
[2023-12-20 16:05:13,923 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942529966] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-20 16:05:13,923 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-20 16:05:13,924 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-20 16:05:13,924 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815937416]
[2023-12-20 16:05:13,925 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-20 16:05:13,948 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-20 16:05:13,951 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-20 16:05:13,958 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-20 16:05:13,959 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-20 16:05:13,963 INFO  L87              Difference]: Start difference. First operand 10193 states and 20273 transitions. Second operand  has 3 states, 3 states have (on average 3364.0) internal successors, (10092), 2 states have internal predecessors, (10092), 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)
[2023-12-20 16:05:45,459 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-20 16:05:45,460 INFO  L93              Difference]: Finished difference Result 30575 states and 60816 transitions.
[2023-12-20 16:05:45,465 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-20 16:05:45,468 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3364.0) internal successors, (10092), 2 states have internal predecessors, (10092), 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 10092
[2023-12-20 16:05:45,480 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-20 16:05:45,541 INFO  L225             Difference]: With dead ends: 30575
[2023-12-20 16:05:45,541 INFO  L226             Difference]: Without dead ends: 20383
[2023-12-20 16:05:45,551 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-20 16:05:45,552 INFO  L413           NwaCegarLoop]: 7699 mSDtfsCounter, 401 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 31106 mSolverCounterSat, 9500 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 7749 SdHoareTripleChecker+Invalid, 40606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9500 IncrementalHoareTripleChecker+Valid, 31106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.9s IncrementalHoareTripleChecker+Time
[2023-12-20 16:05:45,553 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [401 Valid, 7749 Invalid, 40606 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9500 Valid, 31106 Invalid, 0 Unknown, 0 Unchecked, 30.9s Time]
[2023-12-20 16:05:45,572 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 20383 states.
[2023-12-20 16:05:45,822 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 20383 to 20383.
[2023-12-20 16:05:45,847 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 20383 states, 20382 states have (on average 1.6155921891865372) internal successors, (32929), 20382 states have internal predecessors, (32929), 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)
[2023-12-20 16:05:45,877 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 20383 states to 20383 states and 32929 transitions.
[2023-12-20 16:05:45,877 INFO  L78                 Accepts]: Start accepts. Automaton has 20383 states and 32929 transitions. Word has length 10092
[2023-12-20 16:05:45,887 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-20 16:05:45,888 INFO  L495      AbstractCegarLoop]: Abstraction has 20383 states and 32929 transitions.
[2023-12-20 16:05:45,890 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3364.0) internal successors, (10092), 2 states have internal predecessors, (10092), 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)
[2023-12-20 16:05:45,891 INFO  L276                IsEmpty]: Start isEmpty. Operand 20383 states and 32929 transitions.
[2023-12-20 16:05:46,484 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10097
[2023-12-20 16:05:46,484 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-20 16:05:46,488 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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]
[2023-12-20 16:05:46,488 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-12-20 16:05:46,489 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-20 16:05:46,495 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-20 16:05:46,497 INFO  L85        PathProgramCache]: Analyzing trace with hash -1909845127, now seen corresponding path program 1 times
[2023-12-20 16:05:46,497 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-20 16:05:46,497 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575078971]
[2023-12-20 16:05:46,498 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 16:05:46,498 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-20 16:05:47,545 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-20 16:06:05,939 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-20 16:06:05,940 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-20 16:06:05,941 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575078971]
[2023-12-20 16:06:05,941 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575078971] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-20 16:06:05,941 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-20 16:06:05,942 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-20 16:06:05,942 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456489141]
[2023-12-20 16:06:05,942 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-20 16:06:05,966 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-20 16:06:05,966 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-20 16:06:05,972 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-20 16:06:05,973 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-20 16:06:05,975 INFO  L87              Difference]: Start difference. First operand 20383 states and 32929 transitions. Second operand  has 3 states, 3 states have (on average 3365.3333333333335) internal successors, (10096), 2 states have internal predecessors, (10096), 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)
[2023-12-20 16:06:37,910 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-20 16:06:37,911 INFO  L93              Difference]: Finished difference Result 61145 states and 98784 transitions.
[2023-12-20 16:06:37,924 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-20 16:06:37,926 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3365.3333333333335) internal successors, (10096), 2 states have internal predecessors, (10096), 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 10096
[2023-12-20 16:06:37,926 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-20 16:06:37,982 INFO  L225             Difference]: With dead ends: 61145
[2023-12-20 16:06:37,983 INFO  L226             Difference]: Without dead ends: 40763
[2023-12-20 16:06:38,000 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-20 16:06:38,001 INFO  L413           NwaCegarLoop]: 8836 mSDtfsCounter, 11137 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 29967 mSolverCounterSat, 11743 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11137 SdHoareTripleChecker+Valid, 8885 SdHoareTripleChecker+Invalid, 41710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11743 IncrementalHoareTripleChecker+Valid, 29967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.2s IncrementalHoareTripleChecker+Time
[2023-12-20 16:06:38,001 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [11137 Valid, 8885 Invalid, 41710 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11743 Valid, 29967 Invalid, 0 Unknown, 0 Unchecked, 31.2s Time]
[2023-12-20 16:06:38,029 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 40763 states.
[2023-12-20 16:06:38,394 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 40763 to 40763.
[2023-12-20 16:06:38,429 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 40763 states, 40762 states have (on average 1.4703400225700407) internal successors, (59934), 40762 states have internal predecessors, (59934), 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)
[2023-12-20 16:06:38,472 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 40763 states to 40763 states and 59934 transitions.
[2023-12-20 16:06:38,472 INFO  L78                 Accepts]: Start accepts. Automaton has 40763 states and 59934 transitions. Word has length 10096
[2023-12-20 16:06:38,474 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-20 16:06:38,475 INFO  L495      AbstractCegarLoop]: Abstraction has 40763 states and 59934 transitions.
[2023-12-20 16:06:38,477 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3365.3333333333335) internal successors, (10096), 2 states have internal predecessors, (10096), 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)
[2023-12-20 16:06:38,481 INFO  L276                IsEmpty]: Start isEmpty. Operand 40763 states and 59934 transitions.
[2023-12-20 16:06:39,247 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10100
[2023-12-20 16:06:39,247 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-20 16:06:39,250 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-12-20 16:06:39,250 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-12-20 16:06:39,251 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-20 16:06:39,251 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-20 16:06:39,253 INFO  L85        PathProgramCache]: Analyzing trace with hash 2035957038, now seen corresponding path program 1 times
[2023-12-20 16:06:39,253 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-20 16:06:39,253 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339517625]
[2023-12-20 16:06:39,254 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 16:06:39,254 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-20 16:06:40,213 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-20 16:06:59,006 INFO  L134       CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-20 16:06:59,007 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-20 16:06:59,007 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339517625]
[2023-12-20 16:06:59,007 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339517625] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-20 16:06:59,007 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-20 16:06:59,008 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-20 16:06:59,008 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662735226]
[2023-12-20 16:06:59,008 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-20 16:06:59,013 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-20 16:06:59,013 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-20 16:06:59,022 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-20 16:06:59,022 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-20 16:06:59,023 INFO  L87              Difference]: Start difference. First operand 40763 states and 59934 transitions. Second operand  has 3 states, 3 states have (on average 3366.3333333333335) internal successors, (10099), 2 states have internal predecessors, (10099), 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)
[2023-12-20 16:07:29,749 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-20 16:07:29,750 INFO  L93              Difference]: Finished difference Result 122285 states and 179799 transitions.
[2023-12-20 16:07:29,750 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-20 16:07:29,752 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3366.3333333333335) internal successors, (10099), 2 states have internal predecessors, (10099), 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 10099
[2023-12-20 16:07:29,752 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-20 16:07:29,903 INFO  L225             Difference]: With dead ends: 122285
[2023-12-20 16:07:29,904 INFO  L226             Difference]: Without dead ends: 81523
[2023-12-20 16:07:29,927 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-20 16:07:29,928 INFO  L413           NwaCegarLoop]: 9445 mSDtfsCounter, 10617 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 31304 mSolverCounterSat, 10928 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10617 SdHoareTripleChecker+Valid, 9495 SdHoareTripleChecker+Invalid, 42232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10928 IncrementalHoareTripleChecker+Valid, 31304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.8s IncrementalHoareTripleChecker+Time
[2023-12-20 16:07:29,928 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [10617 Valid, 9495 Invalid, 42232 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10928 Valid, 31304 Invalid, 0 Unknown, 0 Unchecked, 29.8s Time]
[2023-12-20 16:07:29,976 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 81523 states.
[2023-12-20 16:07:30,522 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 81523 to 81523.
[2023-12-20 16:07:30,584 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 81523 states, 81522 states have (on average 1.3593385834498664) internal successors, (110816), 81522 states have internal predecessors, (110816), 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)
[2023-12-20 16:07:30,664 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 81523 states to 81523 states and 110816 transitions.
[2023-12-20 16:07:30,664 INFO  L78                 Accepts]: Start accepts. Automaton has 81523 states and 110816 transitions. Word has length 10099
[2023-12-20 16:07:30,665 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-20 16:07:30,665 INFO  L495      AbstractCegarLoop]: Abstraction has 81523 states and 110816 transitions.
[2023-12-20 16:07:30,667 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3366.3333333333335) internal successors, (10099), 2 states have internal predecessors, (10099), 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)
[2023-12-20 16:07:30,667 INFO  L276                IsEmpty]: Start isEmpty. Operand 81523 states and 110816 transitions.
[2023-12-20 16:07:31,626 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10130
[2023-12-20 16:07:31,627 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-20 16:07:31,640 INFO  L195           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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-20 16:07:31,641 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-12-20 16:07:31,641 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-20 16:07:31,641 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-20 16:07:31,643 INFO  L85        PathProgramCache]: Analyzing trace with hash -1351594919, now seen corresponding path program 1 times
[2023-12-20 16:07:31,643 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-20 16:07:31,643 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777987554]
[2023-12-20 16:07:31,644 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 16:07:31,644 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-20 16:07:32,580 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-20 16:07:52,126 INFO  L134       CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-20 16:07:52,127 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-20 16:07:52,127 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777987554]
[2023-12-20 16:07:52,128 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777987554] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-20 16:07:52,128 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-20 16:07:52,129 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-20 16:07:52,129 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096931456]
[2023-12-20 16:07:52,130 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-20 16:07:52,136 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-20 16:07:52,136 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-20 16:07:52,143 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-20 16:07:52,143 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-20 16:07:52,146 INFO  L87              Difference]: Start difference. First operand 81523 states and 110816 transitions. Second operand  has 3 states, 3 states have (on average 3376.3333333333335) internal successors, (10129), 2 states have internal predecessors, (10129), 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)
[2023-12-20 16:08:23,019 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-20 16:08:23,019 INFO  L93              Difference]: Finished difference Result 244565 states and 332445 transitions.
[2023-12-20 16:08:23,020 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-20 16:08:23,022 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3376.3333333333335) internal successors, (10129), 2 states have internal predecessors, (10129), 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 10129
[2023-12-20 16:08:23,022 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-20 16:08:23,358 INFO  L225             Difference]: With dead ends: 244565
[2023-12-20 16:08:23,358 INFO  L226             Difference]: Without dead ends: 163043
[2023-12-20 16:08:23,424 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-20 16:08:23,426 INFO  L413           NwaCegarLoop]: 6562 mSDtfsCounter, 13102 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 27664 mSolverCounterSat, 13030 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13102 SdHoareTripleChecker+Valid, 6611 SdHoareTripleChecker+Invalid, 40694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13030 IncrementalHoareTripleChecker+Valid, 27664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.7s IncrementalHoareTripleChecker+Time
[2023-12-20 16:08:23,426 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13102 Valid, 6611 Invalid, 40694 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13030 Valid, 27664 Invalid, 0 Unknown, 0 Unchecked, 29.7s Time]
[2023-12-20 16:08:23,536 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 163043 states.
[2023-12-20 16:08:24,879 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 163043 to 163043.
[2023-12-20 16:08:24,990 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 163043 states, 163042 states have (on average 1.257994872486844) internal successors, (205106), 163042 states have internal predecessors, (205106), 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)
[2023-12-20 16:08:25,153 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 163043 states to 163043 states and 205106 transitions.
[2023-12-20 16:08:25,153 INFO  L78                 Accepts]: Start accepts. Automaton has 163043 states and 205106 transitions. Word has length 10129
[2023-12-20 16:08:25,154 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-20 16:08:25,154 INFO  L495      AbstractCegarLoop]: Abstraction has 163043 states and 205106 transitions.
[2023-12-20 16:08:25,156 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3376.3333333333335) internal successors, (10129), 2 states have internal predecessors, (10129), 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)
[2023-12-20 16:08:25,156 INFO  L276                IsEmpty]: Start isEmpty. Operand 163043 states and 205106 transitions.
[2023-12-20 16:08:26,365 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10210
[2023-12-20 16:08:26,366 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-20 16:08:26,368 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-20 16:08:26,368 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2023-12-20 16:08:26,368 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-20 16:08:26,369 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-20 16:08:26,370 INFO  L85        PathProgramCache]: Analyzing trace with hash 1918542647, now seen corresponding path program 1 times
[2023-12-20 16:08:26,370 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-20 16:08:26,370 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490851060]
[2023-12-20 16:08:26,371 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 16:08:26,371 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-20 16:08:27,305 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-20 16:08:45,971 INFO  L134       CoverageAnalysis]: Checked inductivity of 159 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked.
[2023-12-20 16:08:45,972 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-20 16:08:45,972 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490851060]
[2023-12-20 16:08:45,972 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490851060] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-20 16:08:45,972 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-20 16:08:45,973 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-20 16:08:45,973 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173500623]
[2023-12-20 16:08:45,973 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-20 16:08:45,995 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-20 16:08:45,995 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-20 16:08:46,005 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-20 16:08:46,006 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-20 16:08:46,009 INFO  L87              Difference]: Start difference. First operand 163043 states and 205106 transitions. Second operand  has 3 states, 3 states have (on average 3379.0) internal successors, (10137), 2 states have internal predecessors, (10137), 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)
[2023-12-20 16:09:19,456 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-20 16:09:19,457 INFO  L93              Difference]: Finished difference Result 489125 states and 615315 transitions.
[2023-12-20 16:09:19,457 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-12-20 16:09:19,459 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3379.0) internal successors, (10137), 2 states have internal predecessors, (10137), 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 10209
[2023-12-20 16:09:19,459 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-20 16:09:19,977 INFO  L225             Difference]: With dead ends: 489125
[2023-12-20 16:09:19,978 INFO  L226             Difference]: Without dead ends: 326083
[2023-12-20 16:09:20,058 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-20 16:09:20,060 INFO  L413           NwaCegarLoop]: 6018 mSDtfsCounter, 12828 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 29206 mSolverCounterSat, 11670 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12828 SdHoareTripleChecker+Valid, 6067 SdHoareTripleChecker+Invalid, 40876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11670 IncrementalHoareTripleChecker+Valid, 29206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.5s IncrementalHoareTripleChecker+Time
[2023-12-20 16:09:20,062 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12828 Valid, 6067 Invalid, 40876 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11670 Valid, 29206 Invalid, 0 Unknown, 0 Unchecked, 31.5s Time]
[2023-12-20 16:09:20,255 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 326083 states.
[2023-12-20 16:09:23,018 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 326083 to 326083.
[2023-12-20 16:09:23,200 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 326083 states, 326082 states have (on average 1.1961531148606792) internal successors, (390044), 326082 states have internal predecessors, (390044), 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)
[2023-12-20 16:09:23,895 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 326083 states to 326083 states and 390044 transitions.
[2023-12-20 16:09:23,896 INFO  L78                 Accepts]: Start accepts. Automaton has 326083 states and 390044 transitions. Word has length 10209
[2023-12-20 16:09:23,896 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-20 16:09:23,896 INFO  L495      AbstractCegarLoop]: Abstraction has 326083 states and 390044 transitions.
[2023-12-20 16:09:23,899 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3379.0) internal successors, (10137), 2 states have internal predecessors, (10137), 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)
[2023-12-20 16:09:23,899 INFO  L276                IsEmpty]: Start isEmpty. Operand 326083 states and 390044 transitions.
[2023-12-20 16:09:25,079 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10280
[2023-12-20 16:09:25,079 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-20 16:09:25,081 INFO  L195           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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-12-20 16:09:25,081 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2023-12-20 16:09:25,081 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-20 16:09:25,081 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-20 16:09:25,082 INFO  L85        PathProgramCache]: Analyzing trace with hash -301274064, now seen corresponding path program 1 times
[2023-12-20 16:09:25,082 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-20 16:09:25,082 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996825677]
[2023-12-20 16:09:25,083 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-20 16:09:25,083 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-20 16:09:26,082 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-20 16:09:45,045 INFO  L134       CoverageAnalysis]: Checked inductivity of 186 backedges. 186 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-20 16:09:45,045 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-20 16:09:45,046 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996825677]
[2023-12-20 16:09:45,046 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996825677] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-20 16:09:45,046 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-20 16:09:45,047 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-20 16:09:45,047 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982221925]
[2023-12-20 16:09:45,047 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-20 16:09:45,051 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-12-20 16:09:45,051 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-20 16:09:45,057 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-12-20 16:09:45,057 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-12-20 16:09:45,060 INFO  L87              Difference]: Start difference. First operand 326083 states and 390044 transitions. Second operand  has 3 states, 3 states have (on average 3426.3333333333335) internal successors, (10279), 2 states have internal predecessors, (10279), 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)