/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-64bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cyclic_scheduler.3.prop1-func-interl.c


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


This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-25 17:40:16,298 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-12-25 17:40:16,373 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf
[2023-12-25 17:40:16,375 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-12-25 17:40:16,376 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-25 17:40:16,398 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-25 17:40:16,399 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-25 17:40:16,399 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-25 17:40:16,400 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-25 17:40:16,403 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-12-25 17:40:16,403 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-25 17:40:16,404 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-25 17:40:16,404 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-25 17:40:16,405 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-12-25 17:40:16,405 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-12-25 17:40:16,405 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-25 17:40:16,405 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-12-25 17:40:16,406 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-12-25 17:40:16,406 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-12-25 17:40:16,407 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-12-25 17:40:16,407 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-25 17:40:16,407 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-12-25 17:40:16,407 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2023-12-25 17:40:16,407 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-12-25 17:40:16,408 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-12-25 17:40:16,408 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-25 17:40:16,408 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-12-25 17:40:16,408 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-12-25 17:40:16,408 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-12-25 17:40:16,409 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-25 17:40:16,409 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-25 17:40:16,410 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-12-25 17:40:16,410 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-25 17:40:16,410 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-12-25 17:40:16,410 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-12-25 17:40:16,410 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-25 17:40:16,410 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-25 17:40:16,410 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-25 17:40:16,410 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-12-25 17:40:16,410 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-25 17:40:16,411 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true
[2023-12-25 17:40:16,605 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-25 17:40:16,629 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-25 17:40:16,631 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-25 17:40:16,632 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-12-25 17:40:16,633 INFO  L274        PluginConnector]: CDTParser initialized
[2023-12-25 17:40:16,634 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cyclic_scheduler.3.prop1-func-interl.c
[2023-12-25 17:40:17,776 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-12-25 17:40:18,090 INFO  L384              CDTParser]: Found 1 translation units.
[2023-12-25 17:40:18,091 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cyclic_scheduler.3.prop1-func-interl.c
[2023-12-25 17:40:18,111 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7863344d3/3c2800989cec4c279dbf0f03a0af2f28/FLAGa9723e98d
[2023-12-25 17:40:18,123 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7863344d3/3c2800989cec4c279dbf0f03a0af2f28
[2023-12-25 17:40:18,125 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-25 17:40:18,127 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-25 17:40:18,129 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-25 17:40:18,129 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-25 17:40:18,132 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-25 17:40:18,132 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:40:18" (1/1) ...
[2023-12-25 17:40:18,133 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@478c4d65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:40:18, skipping insertion in model container
[2023-12-25 17:40:18,133 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:40:18" (1/1) ...
[2023-12-25 17:40:18,193 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-12-25 17:40:18,369 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cyclic_scheduler.3.prop1-func-interl.c[1183,1196]
[2023-12-25 17:40:18,916 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-25 17:40:18,923 INFO  L202         MainTranslator]: Completed pre-run
[2023-12-25 17:40:18,932 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cyclic_scheduler.3.prop1-func-interl.c[1183,1196]
[2023-12-25 17:40:19,276 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-12-25 17:40:19,286 INFO  L206         MainTranslator]: Completed translation
[2023-12-25 17:40:19,286 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:40:19 WrapperNode
[2023-12-25 17:40:19,287 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-25 17:40:19,288 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-25 17:40:19,288 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-25 17:40:19,288 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-25 17:40:19,293 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:40:19" (1/1) ...
[2023-12-25 17:40:19,395 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:40:19" (1/1) ...
[2023-12-25 17:40:21,305 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 23111
[2023-12-25 17:40:21,306 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-25 17:40:21,306 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-25 17:40:21,306 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-25 17:40:21,306 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-12-25 17:40:21,314 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:40:19" (1/1) ...
[2023-12-25 17:40:21,314 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:40:19" (1/1) ...
[2023-12-25 17:40:21,829 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:40:19" (1/1) ...
[2023-12-25 17:40:22,265 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].
[2023-12-25 17:40:22,265 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:40:19" (1/1) ...
[2023-12-25 17:40:22,265 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:40:19" (1/1) ...
[2023-12-25 17:40:22,879 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:40:19" (1/1) ...
[2023-12-25 17:40:22,931 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:40:19" (1/1) ...
[2023-12-25 17:40:23,018 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:40:19" (1/1) ...
[2023-12-25 17:40:23,082 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:40:19" (1/1) ...
[2023-12-25 17:40:23,392 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-25 17:40:23,393 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-25 17:40:23,393 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-12-25 17:40:23,393 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-12-25 17:40:23,393 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:40:19" (1/1) ...
[2023-12-25 17:40:23,397 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-25 17:40:23,404 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-25 17:40:23,450 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)
[2023-12-25 17:40:23,464 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
[2023-12-25 17:40:23,477 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-25 17:40:23,477 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-12-25 17:40:23,477 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-25 17:40:23,477 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-25 17:40:24,253 INFO  L241             CfgBuilder]: Building ICFG
[2023-12-25 17:40:24,255 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-25 17:40:32,311 INFO  L282             CfgBuilder]: Performing block encoding
[2023-12-25 17:40:32,491 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-25 17:40:32,491 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-25 17:40:32,492 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:40:32 BoogieIcfgContainer
[2023-12-25 17:40:32,492 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-25 17:40:32,493 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-25 17:40:32,493 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-12-25 17:40:32,495 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-12-25 17:40:32,496 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 05:40:18" (1/3) ...
[2023-12-25 17:40:32,496 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cbd9df7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:40:32, skipping insertion in model container
[2023-12-25 17:40:32,496 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:40:19" (2/3) ...
[2023-12-25 17:40:32,496 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cbd9df7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:40:32, skipping insertion in model container
[2023-12-25 17:40:32,496 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:40:32" (3/3) ...
[2023-12-25 17:40:32,497 INFO  L112   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cyclic_scheduler.3.prop1-func-interl.c
[2023-12-25 17:40:32,508 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-25 17:40:32,508 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-25 17:40:32,584 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-25 17:40:32,589 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;@73e7fd89, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-25 17:40:32,589 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-25 17:40:32,601 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 5252 states, 5250 states have (on average 1.6666666666666667) internal successors, (8750), 5251 states have internal predecessors, (8750), 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)
[2023-12-25 17:40:32,615 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 325
[2023-12-25 17:40:32,615 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:40:32,616 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 17:40:32,616 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:40:32,620 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:40:32,620 INFO  L85        PathProgramCache]: Analyzing trace with hash -1588456325, now seen corresponding path program 1 times
[2023-12-25 17:40:32,747 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:40:32,748 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741665472]
[2023-12-25 17:40:32,748 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:40:32,748 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:40:33,018 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:40:33,898 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 17:40:33,898 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:40:33,898 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741665472]
[2023-12-25 17:40:33,899 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741665472] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:40:33,899 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:40:33,899 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 17:40:33,900 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038810059]
[2023-12-25 17:40:33,901 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:40:33,906 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 17:40:33,906 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:40:33,929 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 17:40:33,930 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-25 17:40:33,939 INFO  L87              Difference]: Start difference. First operand  has 5252 states, 5250 states have (on average 1.6666666666666667) internal successors, (8750), 5251 states have internal predecessors, (8750), 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 5 states, 5 states have (on average 64.8) internal successors, (324), 4 states have internal predecessors, (324), 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)
[2023-12-25 17:40:38,698 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:40:38,698 INFO  L93              Difference]: Finished difference Result 15042 states and 25066 transitions.
[2023-12-25 17:40:38,699 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 17:40:38,701 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 64.8) internal successors, (324), 4 states have internal predecessors, (324), 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 324
[2023-12-25 17:40:38,702 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:40:38,744 INFO  L225             Difference]: With dead ends: 15042
[2023-12-25 17:40:38,744 INFO  L226             Difference]: Without dead ends: 10145
[2023-12-25 17:40:38,757 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:40:38,759 INFO  L413           NwaCegarLoop]: 6686 mSDtfsCounter, 24742 mSDsluCounter, 13366 mSDsCounter, 0 mSdLazyCounter, 6185 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24742 SdHoareTripleChecker+Valid, 20052 SdHoareTripleChecker+Invalid, 6185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time
[2023-12-25 17:40:38,759 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [24742 Valid, 20052 Invalid, 6185 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 6185 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time]
[2023-12-25 17:40:38,783 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10145 states.
[2023-12-25 17:40:38,916 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10145 to 5369.
[2023-12-25 17:40:38,925 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5369 states, 5368 states have (on average 1.665983606557377) internal successors, (8943), 5368 states have internal predecessors, (8943), 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)
[2023-12-25 17:40:38,939 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5369 states to 5369 states and 8943 transitions.
[2023-12-25 17:40:38,940 INFO  L78                 Accepts]: Start accepts. Automaton has 5369 states and 8943 transitions. Word has length 324
[2023-12-25 17:40:38,944 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:40:38,944 INFO  L495      AbstractCegarLoop]: Abstraction has 5369 states and 8943 transitions.
[2023-12-25 17:40:38,945 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 64.8) internal successors, (324), 4 states have internal predecessors, (324), 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)
[2023-12-25 17:40:38,945 INFO  L276                IsEmpty]: Start isEmpty. Operand 5369 states and 8943 transitions.
[2023-12-25 17:40:38,952 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 326
[2023-12-25 17:40:38,952 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:40:38,952 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 17:40:38,952 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-12-25 17:40:38,953 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:40:38,953 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:40:38,953 INFO  L85        PathProgramCache]: Analyzing trace with hash 863653379, now seen corresponding path program 1 times
[2023-12-25 17:40:38,953 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:40:38,954 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103585765]
[2023-12-25 17:40:38,954 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:40:38,954 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:40:39,089 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:40:39,823 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 17:40:39,823 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:40:39,824 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103585765]
[2023-12-25 17:40:39,824 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103585765] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:40:39,824 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:40:39,824 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 17:40:39,824 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211468183]
[2023-12-25 17:40:39,824 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:40:39,825 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 17:40:39,826 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:40:39,826 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 17:40:39,826 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 17:40:39,826 INFO  L87              Difference]: Start difference. First operand 5369 states and 8943 transitions. Second operand  has 4 states, 4 states have (on average 81.25) internal successors, (325), 4 states have internal predecessors, (325), 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)
[2023-12-25 17:40:39,933 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:40:39,933 INFO  L93              Difference]: Finished difference Result 5373 states and 8947 transitions.
[2023-12-25 17:40:39,933 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 17:40:39,934 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 81.25) internal successors, (325), 4 states have internal predecessors, (325), 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 325
[2023-12-25 17:40:39,935 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:40:39,947 INFO  L225             Difference]: With dead ends: 5373
[2023-12-25 17:40:39,947 INFO  L226             Difference]: Without dead ends: 5371
[2023-12-25 17:40:39,949 INFO  L412           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
[2023-12-25 17:40:39,950 INFO  L413           NwaCegarLoop]: 8743 mSDtfsCounter, 1 mSDsluCounter, 17481 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 26224 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 17:40:39,951 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 26224 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 17:40:39,958 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5371 states.
[2023-12-25 17:40:40,013 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5371 to 5371.
[2023-12-25 17:40:40,022 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5371 states, 5370 states have (on average 1.6657355679702048) internal successors, (8945), 5370 states have internal predecessors, (8945), 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)
[2023-12-25 17:40:40,029 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5371 states to 5371 states and 8945 transitions.
[2023-12-25 17:40:40,029 INFO  L78                 Accepts]: Start accepts. Automaton has 5371 states and 8945 transitions. Word has length 325
[2023-12-25 17:40:40,030 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:40:40,030 INFO  L495      AbstractCegarLoop]: Abstraction has 5371 states and 8945 transitions.
[2023-12-25 17:40:40,030 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 81.25) internal successors, (325), 4 states have internal predecessors, (325), 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)
[2023-12-25 17:40:40,031 INFO  L276                IsEmpty]: Start isEmpty. Operand 5371 states and 8945 transitions.
[2023-12-25 17:40:40,034 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 327
[2023-12-25 17:40:40,034 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:40:40,035 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 17:40:40,035 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-12-25 17:40:40,035 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:40:40,036 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:40:40,037 INFO  L85        PathProgramCache]: Analyzing trace with hash 1005177841, now seen corresponding path program 1 times
[2023-12-25 17:40:40,037 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:40:40,037 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132468968]
[2023-12-25 17:40:40,037 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:40:40,038 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:40:40,141 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:40:40,443 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 17:40:40,444 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:40:40,445 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132468968]
[2023-12-25 17:40:40,445 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132468968] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:40:40,445 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:40:40,445 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 17:40:40,445 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924910563]
[2023-12-25 17:40:40,445 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:40:40,446 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-25 17:40:40,446 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:40:40,446 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-25 17:40:40,448 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-25 17:40:40,449 INFO  L87              Difference]: Start difference. First operand 5371 states and 8945 transitions. Second operand  has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 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)
[2023-12-25 17:40:40,554 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:40:40,555 INFO  L93              Difference]: Finished difference Result 10271 states and 17106 transitions.
[2023-12-25 17:40:40,555 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 17:40:40,555 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 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 326
[2023-12-25 17:40:40,556 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:40:40,568 INFO  L225             Difference]: With dead ends: 10271
[2023-12-25 17:40:40,568 INFO  L226             Difference]: Without dead ends: 5374
[2023-12-25 17:40:40,574 INFO  L412           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
[2023-12-25 17:40:40,576 INFO  L413           NwaCegarLoop]: 8743 mSDtfsCounter, 1 mSDsluCounter, 17479 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 26222 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 17:40:40,577 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 26222 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 17:40:40,583 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5374 states.
[2023-12-25 17:40:40,633 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5374 to 5373.
[2023-12-25 17:40:40,648 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5373 states, 5372 states have (on average 1.665487714072971) internal successors, (8947), 5372 states have internal predecessors, (8947), 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)
[2023-12-25 17:40:40,655 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5373 states to 5373 states and 8947 transitions.
[2023-12-25 17:40:40,656 INFO  L78                 Accepts]: Start accepts. Automaton has 5373 states and 8947 transitions. Word has length 326
[2023-12-25 17:40:40,656 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:40:40,656 INFO  L495      AbstractCegarLoop]: Abstraction has 5373 states and 8947 transitions.
[2023-12-25 17:40:40,657 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 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)
[2023-12-25 17:40:40,658 INFO  L276                IsEmpty]: Start isEmpty. Operand 5373 states and 8947 transitions.
[2023-12-25 17:40:40,662 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 328
[2023-12-25 17:40:40,662 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:40:40,666 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-25 17:40:40,666 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-12-25 17:40:40,666 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:40:40,667 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:40:40,667 INFO  L85        PathProgramCache]: Analyzing trace with hash 885311453, now seen corresponding path program 1 times
[2023-12-25 17:40:40,667 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:40:40,667 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225550639]
[2023-12-25 17:40:40,667 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:40:40,667 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:40:40,755 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:40:41,156 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 17:40:41,156 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:40:41,157 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225550639]
[2023-12-25 17:40:41,157 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225550639] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:40:41,157 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:40:41,157 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 17:40:41,157 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672704728]
[2023-12-25 17:40:41,157 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:40:41,157 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 17:40:41,157 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:40:41,158 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 17:40:41,158 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-25 17:40:41,158 INFO  L87              Difference]: Start difference. First operand 5373 states and 8947 transitions. Second operand  has 5 states, 5 states have (on average 65.4) internal successors, (327), 4 states have internal predecessors, (327), 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)
[2023-12-25 17:40:41,369 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:40:41,369 INFO  L93              Difference]: Finished difference Result 15162 states and 25252 transitions.
[2023-12-25 17:40:41,369 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 17:40:41,369 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 65.4) internal successors, (327), 4 states have internal predecessors, (327), 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 327
[2023-12-25 17:40:41,370 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:40:41,398 INFO  L225             Difference]: With dead ends: 15162
[2023-12-25 17:40:41,399 INFO  L226             Difference]: Without dead ends: 10263
[2023-12-25 17:40:41,410 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2023-12-25 17:40:41,414 INFO  L413           NwaCegarLoop]: 8935 mSDtfsCounter, 33061 mSDsluCounter, 17477 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33061 SdHoareTripleChecker+Valid, 26412 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 17:40:41,415 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33061 Valid, 26412 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 17:40:41,424 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10263 states.
[2023-12-25 17:40:41,494 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10263 to 5376.
[2023-12-25 17:40:41,500 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5376 states, 5375 states have (on average 1.6653023255813955) internal successors, (8951), 5375 states have internal predecessors, (8951), 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)
[2023-12-25 17:40:41,506 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5376 states to 5376 states and 8951 transitions.
[2023-12-25 17:40:41,506 INFO  L78                 Accepts]: Start accepts. Automaton has 5376 states and 8951 transitions. Word has length 327
[2023-12-25 17:40:41,507 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:40:41,507 INFO  L495      AbstractCegarLoop]: Abstraction has 5376 states and 8951 transitions.
[2023-12-25 17:40:41,507 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 65.4) internal successors, (327), 4 states have internal predecessors, (327), 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)
[2023-12-25 17:40:41,507 INFO  L276                IsEmpty]: Start isEmpty. Operand 5376 states and 8951 transitions.
[2023-12-25 17:40:41,756 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3591
[2023-12-25 17:40:41,756 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:40:41,758 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2023-12-25 17:40:41,758 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-12-25 17:40:41,758 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:40:41,758 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:40:41,759 INFO  L85        PathProgramCache]: Analyzing trace with hash -977282639, now seen corresponding path program 1 times
[2023-12-25 17:40:41,759 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:40:41,759 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165868610]
[2023-12-25 17:40:41,760 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:40:41,760 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:40:45,875 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:40:53,214 INFO  L134       CoverageAnalysis]: Checked inductivity of 86 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked.
[2023-12-25 17:40:53,214 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:40:53,214 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165868610]
[2023-12-25 17:40:53,214 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165868610] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:40:53,215 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:40:53,215 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 17:40:53,215 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958050228]
[2023-12-25 17:40:53,215 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:40:53,218 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 17:40:53,218 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:40:53,220 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 17:40:53,220 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-12-25 17:40:53,220 INFO  L87              Difference]: Start difference. First operand 5376 states and 8951 transitions. Second operand  has 5 states, 5 states have (on average 702.2) internal successors, (3511), 5 states have internal predecessors, (3511), 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)
[2023-12-25 17:40:53,395 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:40:53,396 INFO  L93              Difference]: Finished difference Result 15164 states and 25254 transitions.
[2023-12-25 17:40:53,396 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-12-25 17:40:53,397 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 702.2) internal successors, (3511), 5 states have internal predecessors, (3511), 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 3590
[2023-12-25 17:40:53,401 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:40:53,415 INFO  L225             Difference]: With dead ends: 15164
[2023-12-25 17:40:53,415 INFO  L226             Difference]: Without dead ends: 10265
[2023-12-25 17:40:53,424 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-12-25 17:40:53,425 INFO  L413           NwaCegarLoop]: 16886 mSDtfsCounter, 8141 mSDsluCounter, 33757 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8141 SdHoareTripleChecker+Valid, 50643 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 17:40:53,425 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8141 Valid, 50643 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 17:40:53,434 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10265 states.
[2023-12-25 17:40:53,504 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10265 to 5376.
[2023-12-25 17:40:53,510 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5376 states, 5375 states have (on average 1.6653023255813955) internal successors, (8951), 5375 states have internal predecessors, (8951), 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)
[2023-12-25 17:40:53,516 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5376 states to 5376 states and 8951 transitions.
[2023-12-25 17:40:53,516 INFO  L78                 Accepts]: Start accepts. Automaton has 5376 states and 8951 transitions. Word has length 3590
[2023-12-25 17:40:53,520 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:40:53,520 INFO  L495      AbstractCegarLoop]: Abstraction has 5376 states and 8951 transitions.
[2023-12-25 17:40:53,521 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 702.2) internal successors, (3511), 5 states have internal predecessors, (3511), 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)
[2023-12-25 17:40:53,521 INFO  L276                IsEmpty]: Start isEmpty. Operand 5376 states and 8951 transitions.
[2023-12-25 17:40:53,660 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3592
[2023-12-25 17:40:53,660 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:40:53,661 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2023-12-25 17:40:53,662 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2023-12-25 17:40:53,662 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:40:53,662 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:40:53,663 INFO  L85        PathProgramCache]: Analyzing trace with hash 975890945, now seen corresponding path program 1 times
[2023-12-25 17:40:53,663 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:40:53,663 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557972072]
[2023-12-25 17:40:53,663 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:40:53,663 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:41:17,845 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:41:24,925 INFO  L134       CoverageAnalysis]: Checked inductivity of 87 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 17:41:24,925 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:41:24,925 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557972072]
[2023-12-25 17:41:24,925 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557972072] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:41:24,925 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:41:24,926 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 17:41:24,926 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420525741]
[2023-12-25 17:41:24,926 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:41:24,989 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 17:41:24,989 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:41:24,992 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 17:41:24,992 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-12-25 17:41:24,993 INFO  L87              Difference]: Start difference. First operand 5376 states and 8951 transitions. Second operand  has 6 states, 6 states have (on average 598.5) internal successors, (3591), 5 states have internal predecessors, (3591), 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)
[2023-12-25 17:41:27,473 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:41:27,473 INFO  L93              Difference]: Finished difference Result 15126 states and 25175 transitions.
[2023-12-25 17:41:27,474 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 17:41:27,475 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 598.5) internal successors, (3591), 5 states have internal predecessors, (3591), 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 3591
[2023-12-25 17:41:27,475 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:41:27,487 INFO  L225             Difference]: With dead ends: 15126
[2023-12-25 17:41:27,487 INFO  L226             Difference]: Without dead ends: 10225
[2023-12-25 17:41:27,492 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72
[2023-12-25 17:41:27,492 INFO  L413           NwaCegarLoop]: 7175 mSDtfsCounter, 32701 mSDsluCounter, 15269 mSDsCounter, 0 mSdLazyCounter, 3500 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32701 SdHoareTripleChecker+Valid, 22444 SdHoareTripleChecker+Invalid, 3539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 3500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time
[2023-12-25 17:41:27,493 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [32701 Valid, 22444 Invalid, 3539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 3500 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time]
[2023-12-25 17:41:27,500 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10225 states.
[2023-12-25 17:41:27,561 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10225 to 5462.
[2023-12-25 17:41:27,567 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5462 states, 5461 states have (on average 1.6643471891594945) internal successors, (9089), 5461 states have internal predecessors, (9089), 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)
[2023-12-25 17:41:27,573 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5462 states to 5462 states and 9089 transitions.
[2023-12-25 17:41:27,576 INFO  L78                 Accepts]: Start accepts. Automaton has 5462 states and 9089 transitions. Word has length 3591
[2023-12-25 17:41:27,577 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:41:27,578 INFO  L495      AbstractCegarLoop]: Abstraction has 5462 states and 9089 transitions.
[2023-12-25 17:41:27,578 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 598.5) internal successors, (3591), 5 states have internal predecessors, (3591), 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)
[2023-12-25 17:41:27,579 INFO  L276                IsEmpty]: Start isEmpty. Operand 5462 states and 9089 transitions.
[2023-12-25 17:41:27,648 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3593
[2023-12-25 17:41:27,648 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:41:27,650 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2023-12-25 17:41:27,650 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2023-12-25 17:41:27,650 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:41:27,651 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:41:27,651 INFO  L85        PathProgramCache]: Analyzing trace with hash -533302733, now seen corresponding path program 1 times
[2023-12-25 17:41:27,651 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:41:27,651 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191614503]
[2023-12-25 17:41:27,652 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:41:27,652 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:41:50,691 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:41:56,559 INFO  L134       CoverageAnalysis]: Checked inductivity of 87 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 17:41:56,560 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:41:56,560 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191614503]
[2023-12-25 17:41:56,560 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191614503] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:41:56,560 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:41:56,560 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-12-25 17:41:56,560 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952542088]
[2023-12-25 17:41:56,560 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:41:56,563 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 17:41:56,563 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:41:56,565 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 17:41:56,565 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-12-25 17:41:56,565 INFO  L87              Difference]: Start difference. First operand 5462 states and 9089 transitions. Second operand  has 6 states, 6 states have (on average 598.6666666666666) internal successors, (3592), 6 states have internal predecessors, (3592), 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)
[2023-12-25 17:41:59,846 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:41:59,847 INFO  L93              Difference]: Finished difference Result 20000 states and 33139 transitions.
[2023-12-25 17:41:59,847 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 17:41:59,848 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 598.6666666666666) internal successors, (3592), 6 states have internal predecessors, (3592), 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 3592
[2023-12-25 17:41:59,848 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:41:59,869 INFO  L225             Difference]: With dead ends: 20000
[2023-12-25 17:41:59,869 INFO  L226             Difference]: Without dead ends: 15099
[2023-12-25 17:41:59,877 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-12-25 17:41:59,878 INFO  L413           NwaCegarLoop]: 7178 mSDtfsCounter, 23229 mSDsluCounter, 28816 mSDsCounter, 0 mSdLazyCounter, 5550 mSolverCounterSat, 419 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23229 SdHoareTripleChecker+Valid, 35994 SdHoareTripleChecker+Invalid, 5969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 419 IncrementalHoareTripleChecker+Valid, 5550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time
[2023-12-25 17:41:59,878 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [23229 Valid, 35994 Invalid, 5969 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [419 Valid, 5550 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time]
[2023-12-25 17:41:59,888 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 15099 states.
[2023-12-25 17:41:59,963 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 15099 to 6061.
[2023-12-25 17:41:59,969 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6061 states, 6060 states have (on average 1.6597359735973598) internal successors, (10058), 6060 states have internal predecessors, (10058), 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)
[2023-12-25 17:41:59,974 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6061 states to 6061 states and 10058 transitions.
[2023-12-25 17:41:59,974 INFO  L78                 Accepts]: Start accepts. Automaton has 6061 states and 10058 transitions. Word has length 3592
[2023-12-25 17:41:59,975 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:41:59,975 INFO  L495      AbstractCegarLoop]: Abstraction has 6061 states and 10058 transitions.
[2023-12-25 17:41:59,976 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 598.6666666666666) internal successors, (3592), 6 states have internal predecessors, (3592), 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)
[2023-12-25 17:41:59,976 INFO  L276                IsEmpty]: Start isEmpty. Operand 6061 states and 10058 transitions.
[2023-12-25 17:42:00,076 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3594
[2023-12-25 17:42:00,076 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:42:00,078 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2023-12-25 17:42:00,078 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2023-12-25 17:42:00,079 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:42:00,079 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:42:00,080 INFO  L85        PathProgramCache]: Analyzing trace with hash 839053585, now seen corresponding path program 1 times
[2023-12-25 17:42:00,080 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:42:00,080 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754098347]
[2023-12-25 17:42:00,081 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:42:00,081 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:42:24,520 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:42:29,825 INFO  L134       CoverageAnalysis]: Checked inductivity of 87 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 17:42:29,825 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:42:29,825 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754098347]
[2023-12-25 17:42:29,825 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754098347] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:42:29,825 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:42:29,825 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-12-25 17:42:29,826 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501819476]
[2023-12-25 17:42:29,826 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:42:29,828 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 17:42:29,828 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:42:29,830 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 17:42:29,830 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-12-25 17:42:29,831 INFO  L87              Difference]: Start difference. First operand 6061 states and 10058 transitions. Second operand  has 6 states, 6 states have (on average 598.8333333333334) internal successors, (3593), 6 states have internal predecessors, (3593), 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)
[2023-12-25 17:42:33,396 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:42:33,396 INFO  L93              Difference]: Finished difference Result 21308 states and 35251 transitions.
[2023-12-25 17:42:33,397 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 17:42:33,398 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 598.8333333333334) internal successors, (3593), 6 states have internal predecessors, (3593), 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 3593
[2023-12-25 17:42:33,398 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:42:33,420 INFO  L225             Difference]: With dead ends: 21308
[2023-12-25 17:42:33,420 INFO  L226             Difference]: Without dead ends: 16005
[2023-12-25 17:42:33,428 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-12-25 17:42:33,429 INFO  L413           NwaCegarLoop]: 7247 mSDtfsCounter, 23428 mSDsluCounter, 28876 mSDsCounter, 0 mSdLazyCounter, 5534 mSolverCounterSat, 419 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23428 SdHoareTripleChecker+Valid, 36123 SdHoareTripleChecker+Invalid, 5953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 419 IncrementalHoareTripleChecker+Valid, 5534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time
[2023-12-25 17:42:33,429 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [23428 Valid, 36123 Invalid, 5953 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [419 Valid, 5534 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time]
[2023-12-25 17:42:33,437 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 16005 states.
[2023-12-25 17:42:33,522 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 16005 to 6594.
[2023-12-25 17:42:33,528 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6594 states, 6593 states have (on average 1.6559987865918397) internal successors, (10918), 6593 states have internal predecessors, (10918), 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)
[2023-12-25 17:42:33,535 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6594 states to 6594 states and 10918 transitions.
[2023-12-25 17:42:33,536 INFO  L78                 Accepts]: Start accepts. Automaton has 6594 states and 10918 transitions. Word has length 3593
[2023-12-25 17:42:33,536 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:42:33,536 INFO  L495      AbstractCegarLoop]: Abstraction has 6594 states and 10918 transitions.
[2023-12-25 17:42:33,537 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 598.8333333333334) internal successors, (3593), 6 states have internal predecessors, (3593), 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)
[2023-12-25 17:42:33,537 INFO  L276                IsEmpty]: Start isEmpty. Operand 6594 states and 10918 transitions.
[2023-12-25 17:42:33,607 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3595
[2023-12-25 17:42:33,607 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:42:33,609 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2023-12-25 17:42:33,609 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2023-12-25 17:42:33,609 INFO  L420      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:42:33,609 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:42:33,610 INFO  L85        PathProgramCache]: Analyzing trace with hash 598121857, now seen corresponding path program 1 times
[2023-12-25 17:42:33,610 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:42:33,610 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346072477]
[2023-12-25 17:42:33,610 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:42:33,611 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:42:59,151 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:43:07,241 INFO  L134       CoverageAnalysis]: Checked inductivity of 87 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 17:43:07,242 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:43:07,242 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346072477]
[2023-12-25 17:43:07,242 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346072477] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:43:07,819 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:43:07,820 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 17:43:07,820 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735555535]
[2023-12-25 17:43:07,820 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:43:07,822 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 17:43:07,823 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:43:07,825 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 17:43:07,825 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2023-12-25 17:43:07,825 INFO  L87              Difference]: Start difference. First operand 6594 states and 10918 transitions. Second operand  has 6 states, 6 states have (on average 599.0) internal successors, (3594), 5 states have internal predecessors, (3594), 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)
[2023-12-25 17:43:12,649 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:43:12,649 INFO  L93              Difference]: Finished difference Result 17204 states and 28539 transitions.
[2023-12-25 17:43:12,650 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 17:43:12,651 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 599.0) internal successors, (3594), 5 states have internal predecessors, (3594), 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 3594
[2023-12-25 17:43:12,651 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:43:12,663 INFO  L225             Difference]: With dead ends: 17204
[2023-12-25 17:43:12,664 INFO  L226             Difference]: Without dead ends: 11546
[2023-12-25 17:43:12,669 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2023-12-25 17:43:12,669 INFO  L413           NwaCegarLoop]: 6718 mSDtfsCounter, 16495 mSDsluCounter, 19847 mSDsCounter, 0 mSdLazyCounter, 8202 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16495 SdHoareTripleChecker+Valid, 26565 SdHoareTripleChecker+Invalid, 8202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time
[2023-12-25 17:43:12,669 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [16495 Valid, 26565 Invalid, 8202 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 8202 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time]
[2023-12-25 17:43:12,675 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11546 states.
[2023-12-25 17:43:12,730 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11546 to 6603.
[2023-12-25 17:43:12,736 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6603 states, 6602 states have (on average 1.6558618600424113) internal successors, (10932), 6602 states have internal predecessors, (10932), 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)
[2023-12-25 17:43:12,742 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6603 states to 6603 states and 10932 transitions.
[2023-12-25 17:43:12,742 INFO  L78                 Accepts]: Start accepts. Automaton has 6603 states and 10932 transitions. Word has length 3594
[2023-12-25 17:43:12,743 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:43:12,743 INFO  L495      AbstractCegarLoop]: Abstraction has 6603 states and 10932 transitions.
[2023-12-25 17:43:12,744 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 599.0) internal successors, (3594), 5 states have internal predecessors, (3594), 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)
[2023-12-25 17:43:12,744 INFO  L276                IsEmpty]: Start isEmpty. Operand 6603 states and 10932 transitions.
[2023-12-25 17:43:12,895 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3595
[2023-12-25 17:43:12,896 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:43:12,897 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2023-12-25 17:43:12,897 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2023-12-25 17:43:12,898 INFO  L420      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:43:12,898 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:43:12,898 INFO  L85        PathProgramCache]: Analyzing trace with hash -333884609, now seen corresponding path program 1 times
[2023-12-25 17:43:12,898 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:43:12,899 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528399973]
[2023-12-25 17:43:12,899 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:43:12,899 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:43:35,871 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:43:42,342 INFO  L134       CoverageAnalysis]: Checked inductivity of 87 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 17:43:42,342 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:43:42,342 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528399973]
[2023-12-25 17:43:42,342 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528399973] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:43:42,342 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:43:42,343 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 17:43:42,343 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092456083]
[2023-12-25 17:43:42,343 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:43:42,345 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 17:43:42,345 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:43:42,348 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 17:43:42,348 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-12-25 17:43:42,348 INFO  L87              Difference]: Start difference. First operand 6603 states and 10932 transitions. Second operand  has 6 states, 6 states have (on average 599.0) internal successors, (3594), 5 states have internal predecessors, (3594), 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)
[2023-12-25 17:43:44,631 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:43:44,631 INFO  L93              Difference]: Finished difference Result 17115 states and 28387 transitions.
[2023-12-25 17:43:44,633 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 17:43:44,634 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 599.0) internal successors, (3594), 5 states have internal predecessors, (3594), 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 3594
[2023-12-25 17:43:44,634 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:43:44,647 INFO  L225             Difference]: With dead ends: 17115
[2023-12-25 17:43:44,647 INFO  L226             Difference]: Without dead ends: 11448
[2023-12-25 17:43:44,654 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72
[2023-12-25 17:43:44,654 INFO  L413           NwaCegarLoop]: 7175 mSDtfsCounter, 32640 mSDsluCounter, 15267 mSDsCounter, 0 mSdLazyCounter, 3501 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32640 SdHoareTripleChecker+Valid, 22442 SdHoareTripleChecker+Invalid, 3540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 3501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time
[2023-12-25 17:43:44,654 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [32640 Valid, 22442 Invalid, 3540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 3501 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time]
[2023-12-25 17:43:44,661 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11448 states.
[2023-12-25 17:43:44,721 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11448 to 6724.
[2023-12-25 17:43:44,726 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6724 states, 6723 states have (on average 1.6553621894987356) internal successors, (11129), 6723 states have internal predecessors, (11129), 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)
[2023-12-25 17:43:44,732 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6724 states to 6724 states and 11129 transitions.
[2023-12-25 17:43:44,732 INFO  L78                 Accepts]: Start accepts. Automaton has 6724 states and 11129 transitions. Word has length 3594
[2023-12-25 17:43:44,733 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:43:44,733 INFO  L495      AbstractCegarLoop]: Abstraction has 6724 states and 11129 transitions.
[2023-12-25 17:43:44,734 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 599.0) internal successors, (3594), 5 states have internal predecessors, (3594), 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)
[2023-12-25 17:43:44,734 INFO  L276                IsEmpty]: Start isEmpty. Operand 6724 states and 11129 transitions.
[2023-12-25 17:43:44,854 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3596
[2023-12-25 17:43:44,854 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:43:44,856 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2023-12-25 17:43:44,856 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2023-12-25 17:43:44,856 INFO  L420      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:43:44,857 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:43:44,858 INFO  L85        PathProgramCache]: Analyzing trace with hash -1059518137, now seen corresponding path program 1 times
[2023-12-25 17:43:44,858 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:43:44,858 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625883758]
[2023-12-25 17:43:44,858 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:43:44,858 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:44:08,826 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:44:16,899 INFO  L134       CoverageAnalysis]: Checked inductivity of 87 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 17:44:16,899 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:44:16,899 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625883758]
[2023-12-25 17:44:16,899 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625883758] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:44:16,899 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:44:16,900 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 17:44:16,900 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971523699]
[2023-12-25 17:44:16,900 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:44:16,902 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 17:44:16,902 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:44:16,905 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 17:44:16,905 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-12-25 17:44:16,905 INFO  L87              Difference]: Start difference. First operand 6724 states and 11129 transitions. Second operand  has 5 states, 5 states have (on average 719.0) internal successors, (3595), 4 states have internal predecessors, (3595), 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)
[2023-12-25 17:44:20,334 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:44:20,334 INFO  L93              Difference]: Finished difference Result 17037 states and 28270 transitions.
[2023-12-25 17:44:20,334 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 17:44:20,335 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 719.0) internal successors, (3595), 4 states have internal predecessors, (3595), 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 3595
[2023-12-25 17:44:20,335 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:44:20,368 INFO  L225             Difference]: With dead ends: 17037
[2023-12-25 17:44:20,368 INFO  L226             Difference]: Without dead ends: 11370
[2023-12-25 17:44:20,374 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:44:20,375 INFO  L413           NwaCegarLoop]: 6683 mSDtfsCounter, 24626 mSDsluCounter, 13132 mSDsCounter, 0 mSdLazyCounter, 5816 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24626 SdHoareTripleChecker+Valid, 19815 SdHoareTripleChecker+Invalid, 5816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5816 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time
[2023-12-25 17:44:20,375 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [24626 Valid, 19815 Invalid, 5816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5816 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time]
[2023-12-25 17:44:20,381 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11370 states.
[2023-12-25 17:44:20,457 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11370 to 6725.
[2023-12-25 17:44:20,461 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6725 states, 6724 states have (on average 1.655264723378941) internal successors, (11130), 6724 states have internal predecessors, (11130), 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)
[2023-12-25 17:44:20,467 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6725 states to 6725 states and 11130 transitions.
[2023-12-25 17:44:20,467 INFO  L78                 Accepts]: Start accepts. Automaton has 6725 states and 11130 transitions. Word has length 3595
[2023-12-25 17:44:20,468 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:44:20,468 INFO  L495      AbstractCegarLoop]: Abstraction has 6725 states and 11130 transitions.
[2023-12-25 17:44:20,469 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 719.0) internal successors, (3595), 4 states have internal predecessors, (3595), 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)
[2023-12-25 17:44:20,469 INFO  L276                IsEmpty]: Start isEmpty. Operand 6725 states and 11130 transitions.
[2023-12-25 17:44:20,536 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3596
[2023-12-25 17:44:20,536 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:44:20,538 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2023-12-25 17:44:20,538 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2023-12-25 17:44:20,538 INFO  L420      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:44:20,538 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:44:20,539 INFO  L85        PathProgramCache]: Analyzing trace with hash 2014858757, now seen corresponding path program 1 times
[2023-12-25 17:44:20,539 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:44:20,539 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702366445]
[2023-12-25 17:44:20,539 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:44:20,540 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:44:44,133 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:44:50,782 INFO  L134       CoverageAnalysis]: Checked inductivity of 87 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 17:44:50,782 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:44:50,782 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702366445]
[2023-12-25 17:44:50,782 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702366445] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:44:50,782 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:44:50,783 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-12-25 17:44:50,783 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131826734]
[2023-12-25 17:44:50,783 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:44:50,785 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 17:44:50,786 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:44:50,788 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 17:44:50,788 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-12-25 17:44:50,788 INFO  L87              Difference]: Start difference. First operand 6725 states and 11130 transitions. Second operand  has 6 states, 6 states have (on average 599.1666666666666) internal successors, (3595), 6 states have internal predecessors, (3595), 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)
[2023-12-25 17:44:56,697 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:44:56,698 INFO  L93              Difference]: Finished difference Result 23120 states and 38189 transitions.
[2023-12-25 17:44:56,698 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 17:44:56,699 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 599.1666666666666) internal successors, (3595), 6 states have internal predecessors, (3595), 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 3595
[2023-12-25 17:44:56,699 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:44:56,710 INFO  L225             Difference]: With dead ends: 23120
[2023-12-25 17:44:56,711 INFO  L226             Difference]: Without dead ends: 17453
[2023-12-25 17:44:56,716 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-12-25 17:44:56,717 INFO  L413           NwaCegarLoop]: 7174 mSDtfsCounter, 14812 mSDsluCounter, 35444 mSDsCounter, 0 mSdLazyCounter, 7594 mSolverCounterSat, 419 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14812 SdHoareTripleChecker+Valid, 42618 SdHoareTripleChecker+Invalid, 8013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 419 IncrementalHoareTripleChecker+Valid, 7594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time
[2023-12-25 17:44:56,717 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [14812 Valid, 42618 Invalid, 8013 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [419 Valid, 7594 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time]
[2023-12-25 17:44:56,726 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 17453 states.
[2023-12-25 17:44:56,813 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 17453 to 8501.
[2023-12-25 17:44:56,819 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8501 states, 8500 states have (on average 1.6484705882352941) internal successors, (14012), 8500 states have internal predecessors, (14012), 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)
[2023-12-25 17:44:56,827 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8501 states to 8501 states and 14012 transitions.
[2023-12-25 17:44:56,827 INFO  L78                 Accepts]: Start accepts. Automaton has 8501 states and 14012 transitions. Word has length 3595
[2023-12-25 17:44:56,827 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:44:56,828 INFO  L495      AbstractCegarLoop]: Abstraction has 8501 states and 14012 transitions.
[2023-12-25 17:44:56,828 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 599.1666666666666) internal successors, (3595), 6 states have internal predecessors, (3595), 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)
[2023-12-25 17:44:56,828 INFO  L276                IsEmpty]: Start isEmpty. Operand 8501 states and 14012 transitions.
[2023-12-25 17:44:56,938 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3597
[2023-12-25 17:44:56,938 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:44:56,940 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2023-12-25 17:44:56,940 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2023-12-25 17:44:56,940 INFO  L420      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:44:56,940 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:44:56,941 INFO  L85        PathProgramCache]: Analyzing trace with hash -233081275, now seen corresponding path program 1 times
[2023-12-25 17:44:56,941 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:44:56,941 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057447855]
[2023-12-25 17:44:56,941 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:44:56,941 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:45:21,180 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:45:29,020 INFO  L134       CoverageAnalysis]: Checked inductivity of 87 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 17:45:29,020 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:45:29,020 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057447855]
[2023-12-25 17:45:29,020 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057447855] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:45:29,020 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:45:29,021 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 17:45:29,021 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426938506]
[2023-12-25 17:45:29,021 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:45:29,023 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 17:45:29,026 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:45:29,034 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 17:45:29,034 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2023-12-25 17:45:29,035 INFO  L87              Difference]: Start difference. First operand 8501 states and 14012 transitions. Second operand  has 6 states, 6 states have (on average 599.3333333333334) internal successors, (3596), 5 states have internal predecessors, (3596), 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)
[2023-12-25 17:45:33,889 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:45:33,890 INFO  L93              Difference]: Finished difference Result 19877 states and 32874 transitions.
[2023-12-25 17:45:33,890 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 17:45:33,891 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 599.3333333333334) internal successors, (3596), 5 states have internal predecessors, (3596), 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 3596
[2023-12-25 17:45:33,891 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:45:33,901 INFO  L225             Difference]: With dead ends: 19877
[2023-12-25 17:45:33,901 INFO  L226             Difference]: Without dead ends: 13131
[2023-12-25 17:45:33,909 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2023-12-25 17:45:33,910 INFO  L413           NwaCegarLoop]: 6681 mSDtfsCounter, 24425 mSDsluCounter, 19810 mSDsCounter, 0 mSdLazyCounter, 7906 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24425 SdHoareTripleChecker+Valid, 26491 SdHoareTripleChecker+Invalid, 7906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7906 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time
[2023-12-25 17:45:33,910 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [24425 Valid, 26491 Invalid, 7906 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 7906 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time]
[2023-12-25 17:45:33,948 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13131 states.
[2023-12-25 17:45:34,061 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13131 to 8510.
[2023-12-25 17:45:34,081 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8510 states, 8509 states have (on average 1.6483723116699964) internal successors, (14026), 8509 states have internal predecessors, (14026), 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)
[2023-12-25 17:45:34,095 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8510 states to 8510 states and 14026 transitions.
[2023-12-25 17:45:34,095 INFO  L78                 Accepts]: Start accepts. Automaton has 8510 states and 14026 transitions. Word has length 3596
[2023-12-25 17:45:34,096 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:45:34,096 INFO  L495      AbstractCegarLoop]: Abstraction has 8510 states and 14026 transitions.
[2023-12-25 17:45:34,097 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 599.3333333333334) internal successors, (3596), 5 states have internal predecessors, (3596), 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)
[2023-12-25 17:45:34,097 INFO  L276                IsEmpty]: Start isEmpty. Operand 8510 states and 14026 transitions.
[2023-12-25 17:45:34,185 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3597
[2023-12-25 17:45:34,185 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:45:34,186 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2023-12-25 17:45:34,187 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2023-12-25 17:45:34,187 INFO  L420      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:45:34,188 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:45:34,189 INFO  L85        PathProgramCache]: Analyzing trace with hash -2051930621, now seen corresponding path program 1 times
[2023-12-25 17:45:34,189 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:45:34,189 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286861390]
[2023-12-25 17:45:34,189 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:45:34,189 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:45:58,659 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:46:04,749 INFO  L134       CoverageAnalysis]: Checked inductivity of 87 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 17:46:04,749 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:46:04,749 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286861390]
[2023-12-25 17:46:04,749 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286861390] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:46:04,749 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:46:04,750 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-12-25 17:46:04,750 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253102852]
[2023-12-25 17:46:04,750 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:46:04,752 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 17:46:04,752 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:46:04,754 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 17:46:04,754 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-12-25 17:46:04,754 INFO  L87              Difference]: Start difference. First operand 8510 states and 14026 transitions. Second operand  has 6 states, 6 states have (on average 599.3333333333334) internal successors, (3596), 6 states have internal predecessors, (3596), 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)
[2023-12-25 17:46:09,955 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:46:09,955 INFO  L93              Difference]: Finished difference Result 27735 states and 45677 transitions.
[2023-12-25 17:46:09,957 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 17:46:09,958 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 599.3333333333334) internal successors, (3596), 6 states have internal predecessors, (3596), 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 3596
[2023-12-25 17:46:09,958 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:46:09,976 INFO  L225             Difference]: With dead ends: 27735
[2023-12-25 17:46:09,976 INFO  L226             Difference]: Without dead ends: 20980
[2023-12-25 17:46:09,985 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-12-25 17:46:09,985 INFO  L413           NwaCegarLoop]: 7173 mSDtfsCounter, 14804 mSDsluCounter, 35446 mSDsCounter, 0 mSdLazyCounter, 7588 mSolverCounterSat, 419 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14804 SdHoareTripleChecker+Valid, 42619 SdHoareTripleChecker+Invalid, 8007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 419 IncrementalHoareTripleChecker+Valid, 7588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time
[2023-12-25 17:46:09,985 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [14804 Valid, 42619 Invalid, 8007 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [419 Valid, 7588 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time]
[2023-12-25 17:46:09,996 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 20980 states.
[2023-12-25 17:46:10,113 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 20980 to 12047.
[2023-12-25 17:46:10,123 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 12047 states, 12046 states have (on average 1.6408766395483978) internal successors, (19766), 12046 states have internal predecessors, (19766), 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)
[2023-12-25 17:46:10,135 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 12047 states to 12047 states and 19766 transitions.
[2023-12-25 17:46:10,135 INFO  L78                 Accepts]: Start accepts. Automaton has 12047 states and 19766 transitions. Word has length 3596
[2023-12-25 17:46:10,136 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:46:10,136 INFO  L495      AbstractCegarLoop]: Abstraction has 12047 states and 19766 transitions.
[2023-12-25 17:46:10,137 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 599.3333333333334) internal successors, (3596), 6 states have internal predecessors, (3596), 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)
[2023-12-25 17:46:10,137 INFO  L276                IsEmpty]: Start isEmpty. Operand 12047 states and 19766 transitions.
[2023-12-25 17:46:10,264 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3598
[2023-12-25 17:46:10,264 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:46:10,265 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2023-12-25 17:46:10,266 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2023-12-25 17:46:10,266 INFO  L420      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:46:10,266 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:46:10,267 INFO  L85        PathProgramCache]: Analyzing trace with hash -1781423557, now seen corresponding path program 1 times
[2023-12-25 17:46:10,267 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:46:10,267 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955983272]
[2023-12-25 17:46:10,267 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:46:10,268 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:46:35,491 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:46:42,789 INFO  L134       CoverageAnalysis]: Checked inductivity of 87 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 17:46:42,789 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:46:42,789 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955983272]
[2023-12-25 17:46:42,789 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955983272] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:46:42,790 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:46:42,790 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 17:46:42,790 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975859687]
[2023-12-25 17:46:42,790 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:46:42,793 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 17:46:42,793 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:46:42,795 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 17:46:42,795 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2023-12-25 17:46:42,796 INFO  L87              Difference]: Start difference. First operand 12047 states and 19766 transitions. Second operand  has 6 states, 6 states have (on average 599.5) internal successors, (3597), 5 states have internal predecessors, (3597), 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)
[2023-12-25 17:46:47,563 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:46:47,563 INFO  L93              Difference]: Finished difference Result 25560 states and 42095 transitions.
[2023-12-25 17:46:47,563 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 17:46:47,564 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 599.5) internal successors, (3597), 5 states have internal predecessors, (3597), 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 3597
[2023-12-25 17:46:47,565 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:46:47,582 INFO  L225             Difference]: With dead ends: 25560
[2023-12-25 17:46:47,582 INFO  L226             Difference]: Without dead ends: 16665
[2023-12-25 17:46:47,592 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2023-12-25 17:46:47,593 INFO  L413           NwaCegarLoop]: 6681 mSDtfsCounter, 16462 mSDsluCounter, 20034 mSDsCounter, 0 mSdLazyCounter, 8274 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16462 SdHoareTripleChecker+Valid, 26715 SdHoareTripleChecker+Invalid, 8274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time
[2023-12-25 17:46:47,593 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [16462 Valid, 26715 Invalid, 8274 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 8274 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time]
[2023-12-25 17:46:47,604 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 16665 states.
[2023-12-25 17:46:47,693 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 16665 to 12053.
[2023-12-25 17:46:47,703 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 12053 states, 12052 states have (on average 1.6408065051443743) internal successors, (19775), 12052 states have internal predecessors, (19775), 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)
[2023-12-25 17:46:47,715 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 12053 states to 12053 states and 19775 transitions.
[2023-12-25 17:46:47,715 INFO  L78                 Accepts]: Start accepts. Automaton has 12053 states and 19775 transitions. Word has length 3597
[2023-12-25 17:46:47,716 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:46:47,716 INFO  L495      AbstractCegarLoop]: Abstraction has 12053 states and 19775 transitions.
[2023-12-25 17:46:47,717 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 599.5) internal successors, (3597), 5 states have internal predecessors, (3597), 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)
[2023-12-25 17:46:47,717 INFO  L276                IsEmpty]: Start isEmpty. Operand 12053 states and 19775 transitions.
[2023-12-25 17:46:47,822 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3598
[2023-12-25 17:46:47,822 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:46:47,841 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2023-12-25 17:46:47,841 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2023-12-25 17:46:47,841 INFO  L420      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:46:47,842 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:46:47,843 INFO  L85        PathProgramCache]: Analyzing trace with hash -1473134343, now seen corresponding path program 1 times
[2023-12-25 17:46:47,843 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:46:47,843 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126648338]
[2023-12-25 17:46:47,843 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:46:47,843 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:47:13,549 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:47:19,508 INFO  L134       CoverageAnalysis]: Checked inductivity of 87 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 17:47:19,508 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:47:19,508 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126648338]
[2023-12-25 17:47:19,510 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126648338] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:47:19,510 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:47:19,511 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 17:47:19,511 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539417499]
[2023-12-25 17:47:19,511 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:47:19,513 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 17:47:19,513 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:47:19,516 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 17:47:19,516 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-12-25 17:47:19,516 INFO  L87              Difference]: Start difference. First operand 12053 states and 19775 transitions. Second operand  has 6 states, 6 states have (on average 599.5) internal successors, (3597), 5 states have internal predecessors, (3597), 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)
[2023-12-25 17:47:21,473 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:47:21,473 INFO  L93              Difference]: Finished difference Result 25767 states and 42422 transitions.
[2023-12-25 17:47:21,474 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 17:47:21,474 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 599.5) internal successors, (3597), 5 states have internal predecessors, (3597), 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 3597
[2023-12-25 17:47:21,475 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:47:21,490 INFO  L225             Difference]: With dead ends: 25767
[2023-12-25 17:47:21,490 INFO  L226             Difference]: Without dead ends: 16866
[2023-12-25 17:47:21,499 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72
[2023-12-25 17:47:21,499 INFO  L413           NwaCegarLoop]: 7178 mSDtfsCounter, 32559 mSDsluCounter, 15229 mSDsCounter, 0 mSdLazyCounter, 3454 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32559 SdHoareTripleChecker+Valid, 22407 SdHoareTripleChecker+Invalid, 3493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 3454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time
[2023-12-25 17:47:21,503 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [32559 Valid, 22407 Invalid, 3493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 3454 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time]
[2023-12-25 17:47:21,513 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 16866 states.
[2023-12-25 17:47:21,620 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 16866 to 12202.
[2023-12-25 17:47:21,631 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 12202 states, 12201 states have (on average 1.6405212687484632) internal successors, (20016), 12201 states have internal predecessors, (20016), 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)
[2023-12-25 17:47:21,642 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 12202 states to 12202 states and 20016 transitions.
[2023-12-25 17:47:21,643 INFO  L78                 Accepts]: Start accepts. Automaton has 12202 states and 20016 transitions. Word has length 3597
[2023-12-25 17:47:21,643 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:47:21,643 INFO  L495      AbstractCegarLoop]: Abstraction has 12202 states and 20016 transitions.
[2023-12-25 17:47:21,644 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 599.5) internal successors, (3597), 5 states have internal predecessors, (3597), 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)
[2023-12-25 17:47:21,644 INFO  L276                IsEmpty]: Start isEmpty. Operand 12202 states and 20016 transitions.
[2023-12-25 17:47:21,714 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3599
[2023-12-25 17:47:21,714 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:47:21,716 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2023-12-25 17:47:21,716 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2023-12-25 17:47:21,716 INFO  L420      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:47:21,716 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:47:21,717 INFO  L85        PathProgramCache]: Analyzing trace with hash 1544900257, now seen corresponding path program 1 times
[2023-12-25 17:47:21,717 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:47:21,717 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797100683]
[2023-12-25 17:47:21,717 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:47:21,717 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:47:49,268 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:47:56,570 INFO  L134       CoverageAnalysis]: Checked inductivity of 87 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 17:47:56,571 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:47:56,571 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797100683]
[2023-12-25 17:47:56,571 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797100683] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:47:56,571 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:47:56,571 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 17:47:56,571 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184069093]
[2023-12-25 17:47:56,571 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:47:56,574 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 17:47:56,574 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:47:56,576 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 17:47:56,576 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-12-25 17:47:56,576 INFO  L87              Difference]: Start difference. First operand 12202 states and 20016 transitions. Second operand  has 5 states, 5 states have (on average 719.6) internal successors, (3598), 4 states have internal predecessors, (3598), 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)
[2023-12-25 17:48:00,001 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:48:00,002 INFO  L93              Difference]: Finished difference Result 25695 states and 42314 transitions.
[2023-12-25 17:48:00,002 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 17:48:00,003 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 719.6) internal successors, (3598), 4 states have internal predecessors, (3598), 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 3598
[2023-12-25 17:48:00,016 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:48:00,031 INFO  L225             Difference]: With dead ends: 25695
[2023-12-25 17:48:00,031 INFO  L226             Difference]: Without dead ends: 16794
[2023-12-25 17:48:00,040 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:48:00,043 INFO  L413           NwaCegarLoop]: 6684 mSDtfsCounter, 24583 mSDsluCounter, 13134 mSDsCounter, 0 mSdLazyCounter, 5811 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24583 SdHoareTripleChecker+Valid, 19818 SdHoareTripleChecker+Invalid, 5811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time
[2023-12-25 17:48:00,045 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [24583 Valid, 19818 Invalid, 5811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5811 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time]
[2023-12-25 17:48:00,058 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 16794 states.
[2023-12-25 17:48:00,142 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 16794 to 12203.
[2023-12-25 17:48:00,152 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 12203 states, 12202 states have (on average 1.6404687756105556) internal successors, (20017), 12202 states have internal predecessors, (20017), 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)
[2023-12-25 17:48:00,165 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 12203 states to 12203 states and 20017 transitions.
[2023-12-25 17:48:00,166 INFO  L78                 Accepts]: Start accepts. Automaton has 12203 states and 20017 transitions. Word has length 3598
[2023-12-25 17:48:00,166 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:48:00,166 INFO  L495      AbstractCegarLoop]: Abstraction has 12203 states and 20017 transitions.
[2023-12-25 17:48:00,167 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 719.6) internal successors, (3598), 4 states have internal predecessors, (3598), 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)
[2023-12-25 17:48:00,167 INFO  L276                IsEmpty]: Start isEmpty. Operand 12203 states and 20017 transitions.
[2023-12-25 17:48:00,237 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3599
[2023-12-25 17:48:00,237 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:48:00,238 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2023-12-25 17:48:00,238 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2023-12-25 17:48:00,238 INFO  L420      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:48:00,238 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:48:00,239 INFO  L85        PathProgramCache]: Analyzing trace with hash 1888426591, now seen corresponding path program 1 times
[2023-12-25 17:48:00,239 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:48:00,239 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891603183]
[2023-12-25 17:48:00,239 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:48:00,239 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:48:27,342 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:48:33,593 INFO  L134       CoverageAnalysis]: Checked inductivity of 87 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 17:48:33,593 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:48:33,593 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891603183]
[2023-12-25 17:48:33,593 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891603183] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:48:33,593 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:48:33,593 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-12-25 17:48:33,594 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540234316]
[2023-12-25 17:48:33,594 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:48:33,598 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 17:48:33,598 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:48:33,600 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 17:48:33,600 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-12-25 17:48:33,601 INFO  L87              Difference]: Start difference. First operand 12203 states and 20017 transitions. Second operand  has 6 states, 6 states have (on average 599.6666666666666) internal successors, (3598), 6 states have internal predecessors, (3598), 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)
[2023-12-25 17:48:37,004 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:48:37,005 INFO  L93              Difference]: Finished difference Result 38347 states and 62777 transitions.
[2023-12-25 17:48:37,005 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 17:48:37,006 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 599.6666666666666) internal successors, (3598), 6 states have internal predecessors, (3598), 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 3598
[2023-12-25 17:48:37,006 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:48:37,031 INFO  L225             Difference]: With dead ends: 38347
[2023-12-25 17:48:37,031 INFO  L226             Difference]: Without dead ends: 29446
[2023-12-25 17:48:37,135 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-12-25 17:48:37,135 INFO  L413           NwaCegarLoop]: 7188 mSDtfsCounter, 23115 mSDsluCounter, 28826 mSDsCounter, 0 mSdLazyCounter, 5546 mSolverCounterSat, 419 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23115 SdHoareTripleChecker+Valid, 36014 SdHoareTripleChecker+Invalid, 5965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 419 IncrementalHoareTripleChecker+Valid, 5546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time
[2023-12-25 17:48:37,136 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [23115 Valid, 36014 Invalid, 5965 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [419 Valid, 5546 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time]
[2023-12-25 17:48:37,146 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 29446 states.
[2023-12-25 17:48:37,275 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 29446 to 18707.
[2023-12-25 17:48:37,289 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 18707 states, 18706 states have (on average 1.6354110980434085) internal successors, (30592), 18706 states have internal predecessors, (30592), 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)
[2023-12-25 17:48:37,309 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 18707 states to 18707 states and 30592 transitions.
[2023-12-25 17:48:37,309 INFO  L78                 Accepts]: Start accepts. Automaton has 18707 states and 30592 transitions. Word has length 3598
[2023-12-25 17:48:37,309 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:48:37,310 INFO  L495      AbstractCegarLoop]: Abstraction has 18707 states and 30592 transitions.
[2023-12-25 17:48:37,310 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 599.6666666666666) internal successors, (3598), 6 states have internal predecessors, (3598), 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)
[2023-12-25 17:48:37,310 INFO  L276                IsEmpty]: Start isEmpty. Operand 18707 states and 30592 transitions.
[2023-12-25 17:48:37,457 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3600
[2023-12-25 17:48:37,457 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:48:37,459 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2023-12-25 17:48:37,459 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2023-12-25 17:48:37,459 INFO  L420      AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:48:37,459 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:48:37,460 INFO  L85        PathProgramCache]: Analyzing trace with hash -1227116853, now seen corresponding path program 1 times
[2023-12-25 17:48:37,460 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:48:37,460 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673836178]
[2023-12-25 17:48:37,460 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:48:37,460 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:49:02,187 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:49:09,675 INFO  L134       CoverageAnalysis]: Checked inductivity of 87 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 17:49:09,676 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:49:09,676 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673836178]
[2023-12-25 17:49:09,676 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673836178] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:49:09,676 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:49:09,676 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 17:49:09,676 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454064761]
[2023-12-25 17:49:09,676 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:49:09,679 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 17:49:09,679 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:49:09,681 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 17:49:09,681 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2023-12-25 17:49:09,681 INFO  L87              Difference]: Start difference. First operand 18707 states and 30592 transitions. Second operand  has 6 states, 6 states have (on average 599.8333333333334) internal successors, (3599), 5 states have internal predecessors, (3599), 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)
[2023-12-25 17:49:13,735 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:49:13,736 INFO  L93              Difference]: Finished difference Result 35978 states and 59039 transitions.
[2023-12-25 17:49:13,736 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 17:49:13,736 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 599.8333333333334) internal successors, (3599), 5 states have internal predecessors, (3599), 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 3599
[2023-12-25 17:49:13,737 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:49:13,756 INFO  L225             Difference]: With dead ends: 35978
[2023-12-25 17:49:13,756 INFO  L226             Difference]: Without dead ends: 23403
[2023-12-25 17:49:13,768 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2023-12-25 17:49:13,769 INFO  L413           NwaCegarLoop]: 6689 mSDtfsCounter, 24340 mSDsluCounter, 19824 mSDsCounter, 0 mSdLazyCounter, 7934 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24340 SdHoareTripleChecker+Valid, 26513 SdHoareTripleChecker+Invalid, 7934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7934 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time
[2023-12-25 17:49:13,769 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [24340 Valid, 26513 Invalid, 7934 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 7934 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time]
[2023-12-25 17:49:13,782 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 23403 states.
[2023-12-25 17:49:13,899 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 23403 to 18713.
[2023-12-25 17:49:13,913 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 18713 states, 18712 states have (on average 1.6353676784950835) internal successors, (30601), 18712 states have internal predecessors, (30601), 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)
[2023-12-25 17:49:13,933 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 18713 states to 18713 states and 30601 transitions.
[2023-12-25 17:49:13,933 INFO  L78                 Accepts]: Start accepts. Automaton has 18713 states and 30601 transitions. Word has length 3599
[2023-12-25 17:49:13,933 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:49:13,933 INFO  L495      AbstractCegarLoop]: Abstraction has 18713 states and 30601 transitions.
[2023-12-25 17:49:13,934 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 599.8333333333334) internal successors, (3599), 5 states have internal predecessors, (3599), 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)
[2023-12-25 17:49:13,934 INFO  L276                IsEmpty]: Start isEmpty. Operand 18713 states and 30601 transitions.
[2023-12-25 17:49:14,108 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3600
[2023-12-25 17:49:14,109 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:49:14,110 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2023-12-25 17:49:14,110 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2023-12-25 17:49:14,110 INFO  L420      AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:49:14,111 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:49:14,111 INFO  L85        PathProgramCache]: Analyzing trace with hash -1842301303, now seen corresponding path program 1 times
[2023-12-25 17:49:14,111 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:49:14,111 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704686149]
[2023-12-25 17:49:14,112 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:49:14,112 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:49:40,034 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:49:45,895 INFO  L134       CoverageAnalysis]: Checked inductivity of 87 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 17:49:45,896 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:49:45,896 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704686149]
[2023-12-25 17:49:45,896 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704686149] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:49:45,896 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:49:45,896 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 17:49:45,896 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703005412]
[2023-12-25 17:49:45,896 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:49:45,899 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 17:49:45,899 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:49:45,901 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 17:49:45,901 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-12-25 17:49:45,901 INFO  L87              Difference]: Start difference. First operand 18713 states and 30601 transitions. Second operand  has 6 states, 6 states have (on average 599.8333333333334) internal successors, (3599), 5 states have internal predecessors, (3599), 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)
[2023-12-25 17:49:48,283 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:49:48,284 INFO  L93              Difference]: Finished difference Result 35981 states and 59040 transitions.
[2023-12-25 17:49:48,285 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 17:49:48,286 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 599.8333333333334) internal successors, (3599), 5 states have internal predecessors, (3599), 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 3599
[2023-12-25 17:49:48,286 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:49:48,314 INFO  L225             Difference]: With dead ends: 35981
[2023-12-25 17:49:48,314 INFO  L226             Difference]: Without dead ends: 23400
[2023-12-25 17:49:48,324 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72
[2023-12-25 17:49:48,330 INFO  L413           NwaCegarLoop]: 7180 mSDtfsCounter, 32502 mSDsluCounter, 15269 mSDsCounter, 0 mSdLazyCounter, 3490 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32502 SdHoareTripleChecker+Valid, 22449 SdHoareTripleChecker+Invalid, 3529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 3490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time
[2023-12-25 17:49:48,330 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [32502 Valid, 22449 Invalid, 3529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 3490 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time]
[2023-12-25 17:49:48,348 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 23400 states.
[2023-12-25 17:49:48,466 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 23400 to 18769.
[2023-12-25 17:49:48,481 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 18769 states, 18768 states have (on average 1.635283461210571) internal successors, (30691), 18768 states have internal predecessors, (30691), 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)
[2023-12-25 17:49:48,499 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 18769 states to 18769 states and 30691 transitions.
[2023-12-25 17:49:48,500 INFO  L78                 Accepts]: Start accepts. Automaton has 18769 states and 30691 transitions. Word has length 3599
[2023-12-25 17:49:48,500 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:49:48,500 INFO  L495      AbstractCegarLoop]: Abstraction has 18769 states and 30691 transitions.
[2023-12-25 17:49:48,501 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 599.8333333333334) internal successors, (3599), 5 states have internal predecessors, (3599), 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)
[2023-12-25 17:49:48,501 INFO  L276                IsEmpty]: Start isEmpty. Operand 18769 states and 30691 transitions.
[2023-12-25 17:49:48,577 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3601
[2023-12-25 17:49:48,577 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:49:48,580 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2023-12-25 17:49:48,580 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19
[2023-12-25 17:49:48,580 INFO  L420      AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:49:48,580 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:49:48,581 INFO  L85        PathProgramCache]: Analyzing trace with hash 916433903, now seen corresponding path program 1 times
[2023-12-25 17:49:48,581 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:49:48,581 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21469218]
[2023-12-25 17:49:48,582 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:49:48,582 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:50:12,799 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:50:20,717 INFO  L134       CoverageAnalysis]: Checked inductivity of 87 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 17:50:20,718 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:50:20,718 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21469218]
[2023-12-25 17:50:20,718 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21469218] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:50:20,718 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:50:20,718 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-25 17:50:20,718 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47721627]
[2023-12-25 17:50:20,719 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:50:20,721 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 17:50:20,721 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:50:20,723 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 17:50:20,723 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-12-25 17:50:20,740 INFO  L87              Difference]: Start difference. First operand 18769 states and 30691 transitions. Second operand  has 5 states, 5 states have (on average 720.0) internal successors, (3600), 4 states have internal predecessors, (3600), 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)
[2023-12-25 17:50:25,255 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:50:25,255 INFO  L93              Difference]: Finished difference Result 35909 states and 58932 transitions.
[2023-12-25 17:50:25,255 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 17:50:25,256 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 720.0) internal successors, (3600), 4 states have internal predecessors, (3600), 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 3600
[2023-12-25 17:50:25,257 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:50:25,273 INFO  L225             Difference]: With dead ends: 35909
[2023-12-25 17:50:25,273 INFO  L226             Difference]: Without dead ends: 23328
[2023-12-25 17:50:25,279 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2023-12-25 17:50:25,280 INFO  L413           NwaCegarLoop]: 6684 mSDtfsCounter, 24555 mSDsluCounter, 13134 mSDsCounter, 0 mSdLazyCounter, 5809 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24555 SdHoareTripleChecker+Valid, 19818 SdHoareTripleChecker+Invalid, 5809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time
[2023-12-25 17:50:25,280 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [24555 Valid, 19818 Invalid, 5809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5809 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time]
[2023-12-25 17:50:25,295 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 23328 states.
[2023-12-25 17:50:25,415 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 23328 to 18770.
[2023-12-25 17:50:25,430 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 18770 states, 18769 states have (on average 1.635249613724759) internal successors, (30692), 18769 states have internal predecessors, (30692), 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)
[2023-12-25 17:50:25,450 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 18770 states to 18770 states and 30692 transitions.
[2023-12-25 17:50:25,450 INFO  L78                 Accepts]: Start accepts. Automaton has 18770 states and 30692 transitions. Word has length 3600
[2023-12-25 17:50:25,450 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:50:25,450 INFO  L495      AbstractCegarLoop]: Abstraction has 18770 states and 30692 transitions.
[2023-12-25 17:50:25,451 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 720.0) internal successors, (3600), 4 states have internal predecessors, (3600), 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)
[2023-12-25 17:50:25,451 INFO  L276                IsEmpty]: Start isEmpty. Operand 18770 states and 30692 transitions.
[2023-12-25 17:50:25,569 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3601
[2023-12-25 17:50:25,569 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:50:25,570 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2023-12-25 17:50:25,570 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20
[2023-12-25 17:50:25,570 INFO  L420      AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:50:25,570 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:50:25,571 INFO  L85        PathProgramCache]: Analyzing trace with hash 1498208813, now seen corresponding path program 1 times
[2023-12-25 17:50:25,571 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:50:25,571 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810550683]
[2023-12-25 17:50:25,571 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:50:25,571 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:50:53,865 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:50:59,312 INFO  L134       CoverageAnalysis]: Checked inductivity of 87 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 17:50:59,312 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:50:59,312 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810550683]
[2023-12-25 17:50:59,312 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810550683] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:50:59,312 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:50:59,313 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-12-25 17:50:59,313 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066236937]
[2023-12-25 17:50:59,313 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:50:59,315 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 17:50:59,315 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:50:59,319 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 17:50:59,319 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-12-25 17:50:59,319 INFO  L87              Difference]: Start difference. First operand 18770 states and 30692 transitions. Second operand  has 6 states, 6 states have (on average 600.0) internal successors, (3600), 6 states have internal predecessors, (3600), 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)
[2023-12-25 17:51:02,607 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:51:02,608 INFO  L93              Difference]: Finished difference Result 40544 states and 66483 transitions.
[2023-12-25 17:51:02,608 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 17:51:02,609 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 600.0) internal successors, (3600), 6 states have internal predecessors, (3600), 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 3600
[2023-12-25 17:51:02,609 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:51:02,634 INFO  L225             Difference]: With dead ends: 40544
[2023-12-25 17:51:02,635 INFO  L226             Difference]: Without dead ends: 27963
[2023-12-25 17:51:02,648 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-12-25 17:51:02,648 INFO  L413           NwaCegarLoop]: 14770 mSDtfsCounter, 23060 mSDsluCounter, 36399 mSDsCounter, 0 mSdLazyCounter, 5560 mSolverCounterSat, 419 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23060 SdHoareTripleChecker+Valid, 51169 SdHoareTripleChecker+Invalid, 5979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 419 IncrementalHoareTripleChecker+Valid, 5560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time
[2023-12-25 17:51:02,648 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [23060 Valid, 51169 Invalid, 5979 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [419 Valid, 5560 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time]
[2023-12-25 17:51:02,664 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 27963 states.
[2023-12-25 17:51:02,796 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 27963 to 19055.
[2023-12-25 17:51:02,812 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 19055 states, 19054 states have (on average 1.6345649207515482) internal successors, (31145), 19054 states have internal predecessors, (31145), 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)
[2023-12-25 17:51:02,831 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 19055 states to 19055 states and 31145 transitions.
[2023-12-25 17:51:02,831 INFO  L78                 Accepts]: Start accepts. Automaton has 19055 states and 31145 transitions. Word has length 3600
[2023-12-25 17:51:02,832 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:51:02,832 INFO  L495      AbstractCegarLoop]: Abstraction has 19055 states and 31145 transitions.
[2023-12-25 17:51:02,832 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 600.0) internal successors, (3600), 6 states have internal predecessors, (3600), 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)
[2023-12-25 17:51:02,832 INFO  L276                IsEmpty]: Start isEmpty. Operand 19055 states and 31145 transitions.
[2023-12-25 17:51:02,906 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3601
[2023-12-25 17:51:02,907 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:51:02,907 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2023-12-25 17:51:02,908 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21
[2023-12-25 17:51:02,908 INFO  L420      AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:51:02,908 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:51:02,908 INFO  L85        PathProgramCache]: Analyzing trace with hash 49985665, now seen corresponding path program 1 times
[2023-12-25 17:51:02,908 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:51:02,908 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666763165]
[2023-12-25 17:51:02,909 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:51:02,909 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:51:30,799 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:51:36,818 INFO  L134       CoverageAnalysis]: Checked inductivity of 87 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 17:51:36,818 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:51:36,819 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666763165]
[2023-12-25 17:51:36,819 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666763165] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:51:36,819 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:51:36,819 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 17:51:36,819 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057958171]
[2023-12-25 17:51:36,819 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:51:36,821 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 17:51:36,821 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:51:36,823 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 17:51:36,823 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-25 17:51:36,823 INFO  L87              Difference]: Start difference. First operand 19055 states and 31145 transitions. Second operand  has 5 states, 5 states have (on average 720.0) internal successors, (3600), 5 states have internal predecessors, (3600), 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)
[2023-12-25 17:51:39,809 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:51:39,810 INFO  L93              Difference]: Finished difference Result 31808 states and 52064 transitions.
[2023-12-25 17:51:39,810 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 17:51:39,811 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 720.0) internal successors, (3600), 5 states have internal predecessors, (3600), 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 3600
[2023-12-25 17:51:39,824 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:51:39,841 INFO  L225             Difference]: With dead ends: 31808
[2023-12-25 17:51:39,841 INFO  L226             Difference]: Without dead ends: 19059
[2023-12-25 17:51:39,852 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-25 17:51:39,852 INFO  L413           NwaCegarLoop]: 6689 mSDtfsCounter, 8516 mSDsluCounter, 13370 mSDsCounter, 0 mSdLazyCounter, 6181 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8516 SdHoareTripleChecker+Valid, 20059 SdHoareTripleChecker+Invalid, 6182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time
[2023-12-25 17:51:39,852 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8516 Valid, 20059 Invalid, 6182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6181 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time]
[2023-12-25 17:51:39,862 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 19059 states.
[2023-12-25 17:51:40,003 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 19059 to 19057.
[2023-12-25 17:51:40,019 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 19057 states, 19056 states have (on average 1.6344983207388748) internal successors, (31147), 19056 states have internal predecessors, (31147), 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)
[2023-12-25 17:51:40,038 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 19057 states to 19057 states and 31147 transitions.
[2023-12-25 17:51:40,039 INFO  L78                 Accepts]: Start accepts. Automaton has 19057 states and 31147 transitions. Word has length 3600
[2023-12-25 17:51:40,039 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:51:40,039 INFO  L495      AbstractCegarLoop]: Abstraction has 19057 states and 31147 transitions.
[2023-12-25 17:51:40,040 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 720.0) internal successors, (3600), 5 states have internal predecessors, (3600), 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)
[2023-12-25 17:51:40,040 INFO  L276                IsEmpty]: Start isEmpty. Operand 19057 states and 31147 transitions.
[2023-12-25 17:51:40,114 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3602
[2023-12-25 17:51:40,114 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:51:40,115 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2023-12-25 17:51:40,115 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22
[2023-12-25 17:51:40,115 INFO  L420      AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:51:40,115 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:51:40,115 INFO  L85        PathProgramCache]: Analyzing trace with hash -1467689941, now seen corresponding path program 1 times
[2023-12-25 17:51:40,116 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:51:40,116 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315881312]
[2023-12-25 17:51:40,116 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:51:40,116 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:51:42,772 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:51:49,403 INFO  L134       CoverageAnalysis]: Checked inductivity of 87 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 17:51:49,404 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:51:49,404 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315881312]
[2023-12-25 17:51:49,404 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315881312] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:51:49,404 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:51:49,404 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 17:51:49,404 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921949864]
[2023-12-25 17:51:49,404 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:51:49,406 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-25 17:51:49,406 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:51:49,408 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-25 17:51:49,408 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-12-25 17:51:49,408 INFO  L87              Difference]: Start difference. First operand 19057 states and 31147 transitions. Second operand  has 5 states, 5 states have (on average 720.2) internal successors, (3601), 5 states have internal predecessors, (3601), 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)
[2023-12-25 17:51:49,601 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:51:49,601 INFO  L93              Difference]: Finished difference Result 44555 states and 72969 transitions.
[2023-12-25 17:51:49,601 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-12-25 17:51:49,602 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 720.2) internal successors, (3601), 5 states have internal predecessors, (3601), 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 3601
[2023-12-25 17:51:49,602 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:51:49,630 INFO  L225             Difference]: With dead ends: 44555
[2023-12-25 17:51:49,630 INFO  L226             Difference]: Without dead ends: 31804
[2023-12-25 17:51:49,645 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-12-25 17:51:49,645 INFO  L413           NwaCegarLoop]: 9286 mSDtfsCounter, 8144 mSDsluCounter, 27288 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8144 SdHoareTripleChecker+Valid, 36574 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-25 17:51:49,645 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8144 Valid, 36574 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-25 17:51:49,663 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 31804 states.
[2023-12-25 17:51:49,812 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 31804 to 19059.
[2023-12-25 17:51:49,827 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 19059 states, 19058 states have (on average 1.634431734704586) internal successors, (31149), 19058 states have internal predecessors, (31149), 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)
[2023-12-25 17:51:49,845 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 19059 states to 19059 states and 31149 transitions.
[2023-12-25 17:51:49,846 INFO  L78                 Accepts]: Start accepts. Automaton has 19059 states and 31149 transitions. Word has length 3601
[2023-12-25 17:51:49,846 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:51:49,846 INFO  L495      AbstractCegarLoop]: Abstraction has 19059 states and 31149 transitions.
[2023-12-25 17:51:49,847 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 720.2) internal successors, (3601), 5 states have internal predecessors, (3601), 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)
[2023-12-25 17:51:49,847 INFO  L276                IsEmpty]: Start isEmpty. Operand 19059 states and 31149 transitions.
[2023-12-25 17:51:49,979 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3602
[2023-12-25 17:51:49,979 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:51:49,980 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2023-12-25 17:51:49,980 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23
[2023-12-25 17:51:49,980 INFO  L420      AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:51:49,981 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:51:49,981 INFO  L85        PathProgramCache]: Analyzing trace with hash 1345560453, now seen corresponding path program 1 times
[2023-12-25 17:51:49,981 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:51:49,981 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835045812]
[2023-12-25 17:51:49,981 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:51:49,981 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:52:16,055 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:52:22,138 INFO  L134       CoverageAnalysis]: Checked inductivity of 87 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 17:52:22,138 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:52:22,138 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835045812]
[2023-12-25 17:52:22,138 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835045812] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:52:22,138 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:52:22,139 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-12-25 17:52:22,139 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829753110]
[2023-12-25 17:52:22,139 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:52:22,141 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 17:52:22,141 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:52:22,142 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 17:52:22,143 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2023-12-25 17:52:22,143 INFO  L87              Difference]: Start difference. First operand 19059 states and 31149 transitions. Second operand  has 6 states, 6 states have (on average 600.1666666666666) internal successors, (3601), 6 states have internal predecessors, (3601), 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)
[2023-12-25 17:52:25,930 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:52:25,930 INFO  L93              Difference]: Finished difference Result 49585 states and 81140 transitions.
[2023-12-25 17:52:25,930 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 17:52:25,931 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 600.1666666666666) internal successors, (3601), 6 states have internal predecessors, (3601), 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 3601
[2023-12-25 17:52:25,931 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:52:25,964 INFO  L225             Difference]: With dead ends: 49585
[2023-12-25 17:52:25,964 INFO  L226             Difference]: Without dead ends: 36832
[2023-12-25 17:52:25,978 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2023-12-25 17:52:25,979 INFO  L413           NwaCegarLoop]: 6685 mSDtfsCounter, 16639 mSDsluCounter, 20041 mSDsCounter, 0 mSdLazyCounter, 8336 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16639 SdHoareTripleChecker+Valid, 26726 SdHoareTripleChecker+Invalid, 8337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time
[2023-12-25 17:52:25,979 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [16639 Valid, 26726 Invalid, 8337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8336 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time]
[2023-12-25 17:52:26,001 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 36832 states.
[2023-12-25 17:52:26,204 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 36832 to 32218.
[2023-12-25 17:52:26,229 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 32218 states, 32217 states have (on average 1.6309401868578701) internal successors, (52544), 32217 states have internal predecessors, (52544), 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)
[2023-12-25 17:52:26,380 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 32218 states to 32218 states and 52544 transitions.
[2023-12-25 17:52:26,380 INFO  L78                 Accepts]: Start accepts. Automaton has 32218 states and 52544 transitions. Word has length 3601
[2023-12-25 17:52:26,381 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:52:26,381 INFO  L495      AbstractCegarLoop]: Abstraction has 32218 states and 52544 transitions.
[2023-12-25 17:52:26,381 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 600.1666666666666) internal successors, (3601), 6 states have internal predecessors, (3601), 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)
[2023-12-25 17:52:26,381 INFO  L276                IsEmpty]: Start isEmpty. Operand 32218 states and 52544 transitions.
[2023-12-25 17:52:26,458 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3603
[2023-12-25 17:52:26,458 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:52:26,459 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2023-12-25 17:52:26,459 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24
[2023-12-25 17:52:26,459 INFO  L420      AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:52:26,459 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:52:26,460 INFO  L85        PathProgramCache]: Analyzing trace with hash 1534413739, now seen corresponding path program 1 times
[2023-12-25 17:52:26,460 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:52:26,460 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494302020]
[2023-12-25 17:52:26,460 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:52:26,460 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:52:52,199 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:52:58,649 INFO  L134       CoverageAnalysis]: Checked inductivity of 87 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 17:52:58,649 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:52:58,650 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494302020]
[2023-12-25 17:52:58,650 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494302020] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:52:58,650 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:52:58,650 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-12-25 17:52:58,650 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098342990]
[2023-12-25 17:52:58,650 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:52:58,652 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 17:52:58,652 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:52:58,654 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 17:52:58,655 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2023-12-25 17:52:58,655 INFO  L87              Difference]: Start difference. First operand 32218 states and 52544 transitions. Second operand  has 6 states, 6 states have (on average 600.3333333333334) internal successors, (3602), 6 states have internal predecessors, (3602), 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)
[2023-12-25 17:53:03,726 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:53:03,726 INFO  L93              Difference]: Finished difference Result 83220 states and 135867 transitions.
[2023-12-25 17:53:03,726 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 17:53:03,727 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 600.3333333333334) internal successors, (3602), 6 states have internal predecessors, (3602), 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 3602
[2023-12-25 17:53:03,727 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:53:03,782 INFO  L225             Difference]: With dead ends: 83220
[2023-12-25 17:53:03,782 INFO  L226             Difference]: Without dead ends: 63166
[2023-12-25 17:53:03,803 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2023-12-25 17:53:03,807 INFO  L413           NwaCegarLoop]: 6685 mSDtfsCounter, 24511 mSDsluCounter, 20042 mSDsCounter, 0 mSdLazyCounter, 8320 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24511 SdHoareTripleChecker+Valid, 26727 SdHoareTripleChecker+Invalid, 8321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time
[2023-12-25 17:53:03,808 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [24511 Valid, 26727 Invalid, 8321 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 8320 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time]
[2023-12-25 17:53:03,843 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 63166 states.
[2023-12-25 17:53:04,391 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 63166 to 58590.
[2023-12-25 17:53:04,448 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 58590 states, 58589 states have (on average 1.6287016334124154) internal successors, (95424), 58589 states have internal predecessors, (95424), 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)
[2023-12-25 17:53:04,528 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 58590 states to 58590 states and 95424 transitions.
[2023-12-25 17:53:04,529 INFO  L78                 Accepts]: Start accepts. Automaton has 58590 states and 95424 transitions. Word has length 3602
[2023-12-25 17:53:04,529 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:53:04,529 INFO  L495      AbstractCegarLoop]: Abstraction has 58590 states and 95424 transitions.
[2023-12-25 17:53:04,530 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 600.3333333333334) internal successors, (3602), 6 states have internal predecessors, (3602), 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)
[2023-12-25 17:53:04,530 INFO  L276                IsEmpty]: Start isEmpty. Operand 58590 states and 95424 transitions.
[2023-12-25 17:53:04,628 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3604
[2023-12-25 17:53:04,628 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:53:04,629 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2023-12-25 17:53:04,629 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25
[2023-12-25 17:53:04,629 INFO  L420      AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:53:04,629 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:53:04,630 INFO  L85        PathProgramCache]: Analyzing trace with hash -827495559, now seen corresponding path program 1 times
[2023-12-25 17:53:04,630 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:53:04,630 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676771234]
[2023-12-25 17:53:04,630 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:53:04,630 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-25 17:53:29,589 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-25 17:53:36,883 INFO  L134       CoverageAnalysis]: Checked inductivity of 87 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-25 17:53:36,884 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-25 17:53:36,884 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676771234]
[2023-12-25 17:53:36,884 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676771234] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-25 17:53:36,884 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-25 17:53:36,884 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-25 17:53:36,884 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618066937]
[2023-12-25 17:53:36,884 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-25 17:53:36,886 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-25 17:53:36,886 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-25 17:53:36,888 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-25 17:53:36,888 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2023-12-25 17:53:36,888 INFO  L87              Difference]: Start difference. First operand 58590 states and 95424 transitions. Second operand  has 6 states, 6 states have (on average 600.5) internal successors, (3603), 5 states have internal predecessors, (3603), 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)
[2023-12-25 17:53:41,554 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-25 17:53:41,554 INFO  L93              Difference]: Finished difference Result 97852 states and 159734 transitions.
[2023-12-25 17:53:41,555 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-12-25 17:53:41,555 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 600.5) internal successors, (3603), 5 states have internal predecessors, (3603), 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 3603
[2023-12-25 17:53:41,556 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-25 17:53:41,606 INFO  L225             Difference]: With dead ends: 97852
[2023-12-25 17:53:41,606 INFO  L226             Difference]: Without dead ends: 63166
[2023-12-25 17:53:41,633 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2023-12-25 17:53:41,634 INFO  L413           NwaCegarLoop]: 6685 mSDtfsCounter, 24267 mSDsluCounter, 20042 mSDsCounter, 0 mSdLazyCounter, 8320 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24267 SdHoareTripleChecker+Valid, 26727 SdHoareTripleChecker+Invalid, 8320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time
[2023-12-25 17:53:41,635 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [24267 Valid, 26727 Invalid, 8320 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 8320 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time]
[2023-12-25 17:53:41,667 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 63166 states.
[2023-12-25 17:53:42,080 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 63166 to 58591.
[2023-12-25 17:53:42,125 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 58591 states, 58590 states have (on average 1.6286909028844512) internal successors, (95425), 58590 states have internal predecessors, (95425), 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)
[2023-12-25 17:53:42,193 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 58591 states to 58591 states and 95425 transitions.
[2023-12-25 17:53:42,193 INFO  L78                 Accepts]: Start accepts. Automaton has 58591 states and 95425 transitions. Word has length 3603
[2023-12-25 17:53:42,193 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-12-25 17:53:42,194 INFO  L495      AbstractCegarLoop]: Abstraction has 58591 states and 95425 transitions.
[2023-12-25 17:53:42,194 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 600.5) internal successors, (3603), 5 states have internal predecessors, (3603), 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)
[2023-12-25 17:53:42,194 INFO  L276                IsEmpty]: Start isEmpty. Operand 58591 states and 95425 transitions.
[2023-12-25 17:53:42,290 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3604
[2023-12-25 17:53:42,290 INFO  L187           NwaCegarLoop]: Found error trace
[2023-12-25 17:53:42,291 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2023-12-25 17:53:42,291 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26
[2023-12-25 17:53:42,291 INFO  L420      AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-25 17:53:42,292 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-12-25 17:53:42,292 INFO  L85        PathProgramCache]: Analyzing trace with hash 1129956023, now seen corresponding path program 1 times
[2023-12-25 17:53:42,292 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-25 17:53:42,292 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650001623]
[2023-12-25 17:53:42,292 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-25 17:53:42,292 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
Received shutdown request...
[2023-12-25 17:53:48,326 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unknown
[2023-12-25 17:53:48,369 WARN  L340       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end
[2023-12-25 17:53:48,374 INFO  L805   garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2023-12-25 17:53:48,374 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27
[2023-12-25 17:53:48,374 WARN  L619      AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 3604 with TraceHistMax 2,while AutomatonFreeRefinementEngine was Timeout during feasibility check between IpTcStrategyModuleSmtInterpolCraig [1650001623] and IpTcStrategyModuleZ3 [1026292740].
[2023-12-25 17:53:48,377 INFO  L445         BasicCegarLoop]: Path program 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]
[2023-12-25 17:53:48,378 INFO  L179   ceAbstractionStarter]: Computing trace abstraction results
[2023-12-25 17:53:48,380 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.12 05:53:48 BoogieIcfgContainer
[2023-12-25 17:53:48,380 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-12-25 17:53:48,380 INFO  L158              Benchmark]: Toolchain (without parser) took 810253.43ms. Allocated memory was 202.4MB in the beginning and 4.8GB in the end (delta: 4.6GB). Free memory was 145.9MB in the beginning and 1.3GB in the end (delta: -1.1GB). Peak memory consumption was 3.5GB. Max. memory is 8.0GB.
[2023-12-25 17:53:48,380 INFO  L158              Benchmark]: CDTParser took 0.11ms. Allocated memory is still 202.4MB. Free memory is still 155.3MB. There was no memory consumed. Max. memory is 8.0GB.
[2023-12-25 17:53:48,380 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 1158.21ms. Allocated memory was 202.4MB in the beginning and 298.8MB in the end (delta: 96.5MB). Free memory was 145.6MB in the beginning and 180.1MB in the end (delta: -34.5MB). Peak memory consumption was 216.0MB. Max. memory is 8.0GB.
[2023-12-25 17:53:48,380 INFO  L158              Benchmark]: Boogie Procedure Inliner took 2017.86ms. Allocated memory was 298.8MB in the beginning and 1.1GB in the end (delta: 833.6MB). Free memory was 180.1MB in the beginning and 729.6MB in the end (delta: -549.4MB). Peak memory consumption was 324.5MB. Max. memory is 8.0GB.
[2023-12-25 17:53:48,381 INFO  L158              Benchmark]: Boogie Preprocessor took 2085.79ms. Allocated memory was 1.1GB in the beginning and 3.4GB in the end (delta: 2.3GB). Free memory was 729.6MB in the beginning and 2.9GB in the end (delta: -2.1GB). Peak memory consumption was 137.4MB. Max. memory is 8.0GB.
[2023-12-25 17:53:48,381 INFO  L158              Benchmark]: RCFGBuilder took 9099.33ms. Allocated memory is still 3.4GB. Free memory was 2.9GB in the beginning and 2.4GB in the end (delta: 419.4MB). Peak memory consumption was 419.4MB. Max. memory is 8.0GB.
[2023-12-25 17:53:48,381 INFO  L158              Benchmark]: TraceAbstraction took 795886.46ms. Allocated memory was 3.4GB in the beginning and 4.8GB in the end (delta: 1.4GB). Free memory was 2.4GB in the beginning and 1.3GB in the end (delta: 1.2GB). Peak memory consumption was 2.6GB. Max. memory is 8.0GB.
[2023-12-25 17:53:48,382 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.11ms. Allocated memory is still 202.4MB. Free memory is still 155.3MB. There was no memory consumed. Max. memory is 8.0GB.
 * CACSL2BoogieTranslator took 1158.21ms. Allocated memory was 202.4MB in the beginning and 298.8MB in the end (delta: 96.5MB). Free memory was 145.6MB in the beginning and 180.1MB in the end (delta: -34.5MB). Peak memory consumption was 216.0MB. Max. memory is 8.0GB.
 * Boogie Procedure Inliner took 2017.86ms. Allocated memory was 298.8MB in the beginning and 1.1GB in the end (delta: 833.6MB). Free memory was 180.1MB in the beginning and 729.6MB in the end (delta: -549.4MB). Peak memory consumption was 324.5MB. Max. memory is 8.0GB.
 * Boogie Preprocessor took 2085.79ms. Allocated memory was 1.1GB in the beginning and 3.4GB in the end (delta: 2.3GB). Free memory was 729.6MB in the beginning and 2.9GB in the end (delta: -2.1GB). Peak memory consumption was 137.4MB. Max. memory is 8.0GB.
 * RCFGBuilder took 9099.33ms. Allocated memory is still 3.4GB. Free memory was 2.9GB in the beginning and 2.4GB in the end (delta: 419.4MB). Peak memory consumption was 419.4MB. Max. memory is 8.0GB.
 * TraceAbstraction took 795886.46ms. Allocated memory was 3.4GB in the beginning and 4.8GB in the end (delta: 1.4GB). Free memory was 2.4GB in the beginning and 1.3GB in the end (delta: 1.2GB). Peak memory consumption was 2.6GB. Max. memory is 8.0GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - TimeoutResultAtElement [Line: 21]: Timeout (TraceAbstraction)
    Unable to prove that a call to reach_error is unreachable (line 21). Cancelled while NwaCegarLoop was analyzing trace of length 3604 with TraceHistMax 2,while AutomatonFreeRefinementEngine was Timeout during feasibility check between IpTcStrategyModuleSmtInterpolCraig [1650001623] and IpTcStrategyModuleZ3 [1026292740].
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 1 procedures, 5252 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 795.8s, OverallIterations: 28, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 2.6s, AutomataDifference: 86.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 556359 SdHoareTripleChecker+Valid, 79.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 556359 mSDsluCounter, 786380 SdHoareTripleChecker+Invalid, 65.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 574099 mSDsCounter, 2677 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 138526 IncrementalHoareTripleChecker+Invalid, 141203 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2677 mSolverCounterUnsat, 212281 mSDtfsCounter, 138526 mSolverCounterSat, 1.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 208 GetRequests, 85 SyntacticMatches, 4 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58591occurred in iteration=27, InterpolantAutomatonStates: 150, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.8s AutomataMinimizationTime, 27 MinimizatonAttempts, 148488 StatesRemovedByMinimization, 26 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 2.4s SsaConstructionTime, 532.1s SatisfiabilityAnalysisTime, 156.9s InterpolantComputationTime, 84033 NumberOfCodeBlocks, 84033 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 84006 ConstructedInterpolants, 0 QuantifiedInterpolants, 146493 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 27 InterpolantComputations, 27 PerfectInterpolantSequences, 2000/2000 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate could not prove your program: Timeout
Completed graceful shutdown