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


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


Checking for ERROR reachability
Using default analysis
Version 798a7b37
Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bridge.2.prop1-back-serstep.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 21ccece4d486360ce066218a544c7304b8ee0d5c89718dcce6c9924c7cfd2ca2
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-798a7b3-m
[2025-03-03 16:43:59,568 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-03-03 16:43:59,629 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf
[2025-03-03 16:43:59,635 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-03-03 16:43:59,635 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-03-03 16:43:59,654 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-03-03 16:43:59,654 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-03-03 16:43:59,655 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-03-03 16:43:59,655 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2025-03-03 16:43:59,655 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2025-03-03 16:43:59,655 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-03-03 16:43:59,655 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-03-03 16:43:59,655 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-03-03 16:43:59,656 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-03-03 16:43:59,656 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-03-03 16:43:59,656 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2025-03-03 16:43:59,656 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2025-03-03 16:43:59,656 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2025-03-03 16:43:59,656 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2025-03-03 16:43:59,656 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2025-03-03 16:43:59,656 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2025-03-03 16:43:59,656 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2025-03-03 16:43:59,656 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2025-03-03 16:43:59,656 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2025-03-03 16:43:59,656 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2025-03-03 16:43:59,657 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2025-03-03 16:43:59,657 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-03-03 16:43:59,657 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2025-03-03 16:43:59,657 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-03-03 16:43:59,657 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-03-03 16:43:59,657 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-03-03 16:43:59,657 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-03-03 16:43:59,657 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2025-03-03 16:43:59,657 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2025-03-03 16:43:59,657 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-03-03 16:43:59,657 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-03-03 16:43:59,657 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2025-03-03 16:43:59,657 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-03-03 16:43:59,657 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2025-03-03 16:43:59,657 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-03-03 16:43:59,657 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 21ccece4d486360ce066218a544c7304b8ee0d5c89718dcce6c9924c7cfd2ca2
[2025-03-03 16:43:59,865 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-03-03 16:43:59,874 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-03-03 16:43:59,879 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-03-03 16:43:59,880 INFO  L270        PluginConnector]: Initializing CDTParser...
[2025-03-03 16:43:59,880 INFO  L274        PluginConnector]: CDTParser initialized
[2025-03-03 16:43:59,880 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bridge.2.prop1-back-serstep.c
[2025-03-03 16:44:00,983 INFO  L533              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86a6d606c/a671a23f127745f8b6432f20783e7b33/FLAG97a8c7a51
[2025-03-03 16:44:01,371 INFO  L384              CDTParser]: Found 1 translation units.
[2025-03-03 16:44:01,372 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bridge.2.prop1-back-serstep.c
[2025-03-03 16:44:01,396 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86a6d606c/a671a23f127745f8b6432f20783e7b33/FLAG97a8c7a51
[2025-03-03 16:44:01,555 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86a6d606c/a671a23f127745f8b6432f20783e7b33
[2025-03-03 16:44:01,557 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-03-03 16:44:01,558 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2025-03-03 16:44:01,560 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2025-03-03 16:44:01,560 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2025-03-03 16:44:01,564 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2025-03-03 16:44:01,564 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 04:44:01" (1/1) ...
[2025-03-03 16:44:01,565 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49efd45b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:44:01, skipping insertion in model container
[2025-03-03 16:44:01,565 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 04:44:01" (1/1) ...
[2025-03-03 16:44:01,626 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2025-03-03 16:44:01,791 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bridge.2.prop1-back-serstep.c[1174,1187]
[2025-03-03 16:44:02,227 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-03-03 16:44:02,234 INFO  L200         MainTranslator]: Completed pre-run
[2025-03-03 16:44:02,241 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bridge.2.prop1-back-serstep.c[1174,1187]
[2025-03-03 16:44:02,577 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-03-03 16:44:02,589 INFO  L204         MainTranslator]: Completed translation
[2025-03-03 16:44:02,589 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:44:02 WrapperNode
[2025-03-03 16:44:02,590 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2025-03-03 16:44:02,591 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2025-03-03 16:44:02,591 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2025-03-03 16:44:02,591 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2025-03-03 16:44:02,597 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:44:02" (1/1) ...
[2025-03-03 16:44:02,678 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:44:02" (1/1) ...
[2025-03-03 16:44:03,851 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 15376
[2025-03-03 16:44:03,852 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2025-03-03 16:44:03,853 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-03-03 16:44:03,853 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-03-03 16:44:03,853 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-03-03 16:44:03,859 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:44:02" (1/1) ...
[2025-03-03 16:44:03,860 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:44:02" (1/1) ...
[2025-03-03 16:44:04,192 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:44:02" (1/1) ...
[2025-03-03 16:44:04,454 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2025-03-03 16:44:04,454 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:44:02" (1/1) ...
[2025-03-03 16:44:04,455 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:44:02" (1/1) ...
[2025-03-03 16:44:04,779 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:44:02" (1/1) ...
[2025-03-03 16:44:04,821 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:44:02" (1/1) ...
[2025-03-03 16:44:04,874 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:44:02" (1/1) ...
[2025-03-03 16:44:04,918 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:44:02" (1/1) ...
[2025-03-03 16:44:05,082 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-03-03 16:44:05,083 INFO  L112        PluginConnector]: ------------------------IcfgBuilder----------------------------
[2025-03-03 16:44:05,083 INFO  L270        PluginConnector]: Initializing IcfgBuilder...
[2025-03-03 16:44:05,083 INFO  L274        PluginConnector]: IcfgBuilder initialized
[2025-03-03 16:44:05,084 INFO  L184        PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:44:02" (1/1) ...
[2025-03-03 16:44:05,087 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-03-03 16:44:05,096 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-03 16:44:05,107 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)
[2025-03-03 16:44:05,109 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
[2025-03-03 16:44:05,126 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2025-03-03 16:44:05,126 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2025-03-03 16:44:05,126 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2025-03-03 16:44:05,126 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2025-03-03 16:44:05,847 INFO  L256             CfgBuilder]: Building ICFG
[2025-03-03 16:44:05,849 INFO  L286             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-03-03 16:44:25,294 INFO  L?                        ?]: Removed 8541 outVars from TransFormulas that were not future-live.
[2025-03-03 16:44:25,294 INFO  L307             CfgBuilder]: Performing block encoding
[2025-03-03 16:44:25,606 INFO  L331             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2025-03-03 16:44:25,606 INFO  L336             CfgBuilder]: Removed 0 assume(true) statements.
[2025-03-03 16:44:25,607 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 04:44:25 BoogieIcfgContainer
[2025-03-03 16:44:25,607 INFO  L131        PluginConnector]: ------------------------ END IcfgBuilder----------------------------
[2025-03-03 16:44:25,608 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-03-03 16:44:25,608 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-03-03 16:44:25,612 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-03-03 16:44:25,613 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 04:44:01" (1/3) ...
[2025-03-03 16:44:25,613 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b76fe92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 04:44:25, skipping insertion in model container
[2025-03-03 16:44:25,613 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:44:02" (2/3) ...
[2025-03-03 16:44:25,613 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b76fe92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 04:44:25, skipping insertion in model container
[2025-03-03 16:44:25,613 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 04:44:25" (3/3) ...
[2025-03-03 16:44:25,615 INFO  L128   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.bridge.2.prop1-back-serstep.c
[2025-03-03 16:44:25,626 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-03-03 16:44:25,631 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.bridge.2.prop1-back-serstep.c that has 1 procedures, 5406 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2025-03-03 16:44:25,758 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-03-03 16:44:25,768 INFO  L333      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4569428e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-03-03 16:44:25,768 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-03-03 16:44:25,784 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 5406 states, 5404 states have (on average 1.4998149518874908) internal successors, (8105), 5405 states have internal predecessors, (8105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 16:44:25,801 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 360
[2025-03-03 16:44:25,802 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 16:44:25,803 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-03 16:44:25,803 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 16:44:25,807 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 16:44:25,808 INFO  L85        PathProgramCache]: Analyzing trace with hash 948972170, now seen corresponding path program 1 times
[2025-03-03 16:44:25,813 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 16:44:25,815 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339170677]
[2025-03-03 16:44:25,815 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 16:44:25,816 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 16:44:25,943 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 359 statements into 1 equivalence classes.
[2025-03-03 16:44:26,201 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 359 of 359 statements.
[2025-03-03 16:44:26,201 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 16:44:26,202 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 16:44:27,234 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-03 16:44:27,234 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 16:44:27,234 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339170677]
[2025-03-03 16:44:27,236 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339170677] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-03 16:44:27,236 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-03 16:44:27,237 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-03 16:44:27,238 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518314756]
[2025-03-03 16:44:27,238 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-03 16:44:27,242 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-03 16:44:27,243 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 16:44:27,259 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-03 16:44:27,260 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-03 16:44:27,270 INFO  L87              Difference]: Start difference. First operand  has 5406 states, 5404 states have (on average 1.4998149518874908) internal successors, (8105), 5405 states have internal predecessors, (8105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 4 states, 4 states have (on average 89.75) internal successors, (359), 4 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 16:44:29,505 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-03 16:44:29,505 INFO  L93              Difference]: Finished difference Result 10669 states and 15999 transitions.
[2025-03-03 16:44:29,507 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-03 16:44:29,509 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 89.75) internal successors, (359), 4 states have internal predecessors, (359), 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 359
[2025-03-03 16:44:29,511 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-03 16:44:29,544 INFO  L225             Difference]: With dead ends: 10669
[2025-03-03 16:44:29,544 INFO  L226             Difference]: Without dead ends: 5405
[2025-03-03 16:44:29,560 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-03 16:44:29,562 INFO  L435           NwaCegarLoop]: 6750 mSDtfsCounter, 0 mSDsluCounter, 13495 mSDsCounter, 0 mSdLazyCounter, 4057 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20245 SdHoareTripleChecker+Invalid, 4057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time
[2025-03-03 16:44:29,563 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20245 Invalid, 4057 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4057 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time]
[2025-03-03 16:44:29,580 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5405 states.
[2025-03-03 16:44:29,692 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5405 to 5405.
[2025-03-03 16:44:29,702 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5405 states, 5404 states have (on average 1.4994448556624722) internal successors, (8103), 5404 states have internal predecessors, (8103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 16:44:29,715 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5405 states to 5405 states and 8103 transitions.
[2025-03-03 16:44:29,716 INFO  L78                 Accepts]: Start accepts. Automaton has 5405 states and 8103 transitions. Word has length 359
[2025-03-03 16:44:29,717 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-03 16:44:29,717 INFO  L471      AbstractCegarLoop]: Abstraction has 5405 states and 8103 transitions.
[2025-03-03 16:44:29,718 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 89.75) internal successors, (359), 4 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 16:44:29,718 INFO  L276                IsEmpty]: Start isEmpty. Operand 5405 states and 8103 transitions.
[2025-03-03 16:44:29,723 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 361
[2025-03-03 16:44:29,724 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 16:44:29,724 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-03 16:44:29,724 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2025-03-03 16:44:29,724 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 16:44:29,725 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 16:44:29,725 INFO  L85        PathProgramCache]: Analyzing trace with hash -641946453, now seen corresponding path program 1 times
[2025-03-03 16:44:29,725 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 16:44:29,725 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651450431]
[2025-03-03 16:44:29,725 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 16:44:29,725 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 16:44:29,792 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 360 statements into 1 equivalence classes.
[2025-03-03 16:44:29,859 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 360 of 360 statements.
[2025-03-03 16:44:29,859 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 16:44:29,859 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 16:44:30,452 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-03 16:44:30,452 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 16:44:30,452 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651450431]
[2025-03-03 16:44:30,453 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651450431] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-03 16:44:30,453 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-03 16:44:30,453 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-03 16:44:30,453 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298122035]
[2025-03-03 16:44:30,453 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-03 16:44:30,454 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-03 16:44:30,454 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 16:44:30,455 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-03 16:44:30,455 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-03 16:44:30,455 INFO  L87              Difference]: Start difference. First operand 5405 states and 8103 transitions. Second operand  has 4 states, 4 states have (on average 90.0) internal successors, (360), 4 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 16:44:32,822 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-03 16:44:32,822 INFO  L93              Difference]: Finished difference Result 10670 states and 15997 transitions.
[2025-03-03 16:44:32,823 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-03 16:44:32,823 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 90.0) internal successors, (360), 4 states have internal predecessors, (360), 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 360
[2025-03-03 16:44:32,823 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-03 16:44:32,839 INFO  L225             Difference]: With dead ends: 10670
[2025-03-03 16:44:32,839 INFO  L226             Difference]: Without dead ends: 5407
[2025-03-03 16:44:32,847 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-03 16:44:32,848 INFO  L435           NwaCegarLoop]: 6750 mSDtfsCounter, 0 mSDsluCounter, 13492 mSDsCounter, 0 mSdLazyCounter, 4060 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20242 SdHoareTripleChecker+Invalid, 4060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time
[2025-03-03 16:44:32,849 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20242 Invalid, 4060 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4060 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time]
[2025-03-03 16:44:32,856 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5407 states.
[2025-03-03 16:44:32,923 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5407 to 5407.
[2025-03-03 16:44:32,931 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5407 states, 5406 states have (on average 1.499260081391047) internal successors, (8105), 5406 states have internal predecessors, (8105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 16:44:32,941 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5407 states to 5407 states and 8105 transitions.
[2025-03-03 16:44:32,942 INFO  L78                 Accepts]: Start accepts. Automaton has 5407 states and 8105 transitions. Word has length 360
[2025-03-03 16:44:32,943 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-03 16:44:32,943 INFO  L471      AbstractCegarLoop]: Abstraction has 5407 states and 8105 transitions.
[2025-03-03 16:44:32,943 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 90.0) internal successors, (360), 4 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 16:44:32,944 INFO  L276                IsEmpty]: Start isEmpty. Operand 5407 states and 8105 transitions.
[2025-03-03 16:44:32,947 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 362
[2025-03-03 16:44:32,947 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 16:44:32,947 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-03 16:44:32,947 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-03-03 16:44:32,948 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 16:44:32,950 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 16:44:32,951 INFO  L85        PathProgramCache]: Analyzing trace with hash -788953435, now seen corresponding path program 1 times
[2025-03-03 16:44:32,951 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 16:44:32,951 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476107678]
[2025-03-03 16:44:32,951 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 16:44:32,951 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 16:44:33,029 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 361 statements into 1 equivalence classes.
[2025-03-03 16:44:33,088 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 361 of 361 statements.
[2025-03-03 16:44:33,090 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 16:44:33,090 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 16:44:33,511 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-03 16:44:33,511 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 16:44:33,511 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476107678]
[2025-03-03 16:44:33,512 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476107678] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-03 16:44:33,512 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-03 16:44:33,512 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-03 16:44:33,512 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208466894]
[2025-03-03 16:44:33,512 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-03 16:44:33,513 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-03 16:44:33,513 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 16:44:33,514 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-03 16:44:33,514 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-03 16:44:33,514 INFO  L87              Difference]: Start difference. First operand 5407 states and 8105 transitions. Second operand  has 4 states, 4 states have (on average 90.25) internal successors, (361), 4 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 16:44:35,203 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-03 16:44:35,203 INFO  L93              Difference]: Finished difference Result 10674 states and 16001 transitions.
[2025-03-03 16:44:35,204 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-03 16:44:35,204 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 90.25) internal successors, (361), 4 states have internal predecessors, (361), 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 361
[2025-03-03 16:44:35,204 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-03 16:44:35,216 INFO  L225             Difference]: With dead ends: 10674
[2025-03-03 16:44:35,216 INFO  L226             Difference]: Without dead ends: 5409
[2025-03-03 16:44:35,219 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-03 16:44:35,220 INFO  L435           NwaCegarLoop]: 6750 mSDtfsCounter, 0 mSDsluCounter, 13492 mSDsCounter, 0 mSdLazyCounter, 4060 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20242 SdHoareTripleChecker+Invalid, 4060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time
[2025-03-03 16:44:35,220 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20242 Invalid, 4060 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4060 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time]
[2025-03-03 16:44:35,228 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5409 states.
[2025-03-03 16:44:35,271 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5409 to 5409.
[2025-03-03 16:44:35,277 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5409 states, 5408 states have (on average 1.4990754437869822) internal successors, (8107), 5408 states have internal predecessors, (8107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 16:44:35,285 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5409 states to 5409 states and 8107 transitions.
[2025-03-03 16:44:35,286 INFO  L78                 Accepts]: Start accepts. Automaton has 5409 states and 8107 transitions. Word has length 361
[2025-03-03 16:44:35,287 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-03 16:44:35,287 INFO  L471      AbstractCegarLoop]: Abstraction has 5409 states and 8107 transitions.
[2025-03-03 16:44:35,287 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 90.25) internal successors, (361), 4 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 16:44:35,287 INFO  L276                IsEmpty]: Start isEmpty. Operand 5409 states and 8107 transitions.
[2025-03-03 16:44:35,290 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 363
[2025-03-03 16:44:35,290 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 16:44:35,291 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-03 16:44:35,291 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-03-03 16:44:35,291 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 16:44:35,292 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 16:44:35,292 INFO  L85        PathProgramCache]: Analyzing trace with hash -1094349296, now seen corresponding path program 1 times
[2025-03-03 16:44:35,292 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 16:44:35,292 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508633832]
[2025-03-03 16:44:35,292 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 16:44:35,293 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 16:44:35,351 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 362 statements into 1 equivalence classes.
[2025-03-03 16:44:35,382 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 362 of 362 statements.
[2025-03-03 16:44:35,382 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 16:44:35,382 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 16:44:35,891 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-03 16:44:35,892 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 16:44:35,892 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508633832]
[2025-03-03 16:44:35,892 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508633832] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-03 16:44:35,892 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-03 16:44:35,893 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-03-03 16:44:35,893 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492608061]
[2025-03-03 16:44:35,893 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-03 16:44:35,893 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-03-03 16:44:35,893 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 16:44:35,894 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-03-03 16:44:35,894 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2025-03-03 16:44:35,895 INFO  L87              Difference]: Start difference. First operand 5409 states and 8107 transitions. Second operand  has 6 states, 6 states have (on average 60.333333333333336) internal successors, (362), 6 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 16:44:38,467 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-03 16:44:38,468 INFO  L93              Difference]: Finished difference Result 15929 states and 23878 transitions.
[2025-03-03 16:44:38,468 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2025-03-03 16:44:38,468 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 60.333333333333336) internal successors, (362), 6 states have internal predecessors, (362), 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 362
[2025-03-03 16:44:38,473 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-03 16:44:38,499 INFO  L225             Difference]: With dead ends: 15929
[2025-03-03 16:44:38,499 INFO  L226             Difference]: Without dead ends: 10662
[2025-03-03 16:44:38,505 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2025-03-03 16:44:38,506 INFO  L435           NwaCegarLoop]: 6748 mSDtfsCounter, 7731 mSDsluCounter, 20063 mSDsCounter, 0 mSdLazyCounter, 5383 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7731 SdHoareTripleChecker+Valid, 26811 SdHoareTripleChecker+Invalid, 5384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time
[2025-03-03 16:44:38,506 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [7731 Valid, 26811 Invalid, 5384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5383 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time]
[2025-03-03 16:44:38,516 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10662 states.
[2025-03-03 16:44:38,661 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10662 to 5969.
[2025-03-03 16:44:38,667 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5969 states, 5968 states have (on average 1.499162198391421) internal successors, (8947), 5968 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)
[2025-03-03 16:44:38,673 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5969 states to 5969 states and 8947 transitions.
[2025-03-03 16:44:38,674 INFO  L78                 Accepts]: Start accepts. Automaton has 5969 states and 8947 transitions. Word has length 362
[2025-03-03 16:44:38,675 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-03 16:44:38,675 INFO  L471      AbstractCegarLoop]: Abstraction has 5969 states and 8947 transitions.
[2025-03-03 16:44:38,675 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 60.333333333333336) internal successors, (362), 6 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 16:44:38,675 INFO  L276                IsEmpty]: Start isEmpty. Operand 5969 states and 8947 transitions.
[2025-03-03 16:44:38,793 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2994
[2025-03-03 16:44:38,793 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 16:44:38,794 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2025-03-03 16:44:38,795 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-03-03 16:44:38,796 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 16:44:38,797 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 16:44:38,798 INFO  L85        PathProgramCache]: Analyzing trace with hash -2110979130, now seen corresponding path program 1 times
[2025-03-03 16:44:38,798 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 16:44:38,798 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641559833]
[2025-03-03 16:44:38,799 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 16:44:38,799 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 16:44:39,082 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2993 statements into 1 equivalence classes.
[2025-03-03 16:44:42,271 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2993 of 2993 statements.
[2025-03-03 16:44:42,272 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 16:44:42,272 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 16:44:47,065 INFO  L134       CoverageAnalysis]: Checked inductivity of 286 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 278 trivial. 0 not checked.
[2025-03-03 16:44:47,065 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 16:44:47,065 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641559833]
[2025-03-03 16:44:47,065 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641559833] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-03 16:44:47,065 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-03 16:44:47,066 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-03 16:44:47,066 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707006121]
[2025-03-03 16:44:47,066 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-03 16:44:47,069 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-03 16:44:47,069 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 16:44:47,071 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-03 16:44:47,071 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-03 16:44:47,071 INFO  L87              Difference]: Start difference. First operand 5969 states and 8947 transitions. Second operand  has 4 states, 4 states have (on average 679.0) internal successors, (2716), 4 states have internal predecessors, (2716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 16:44:48,624 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-03 16:44:48,624 INFO  L93              Difference]: Finished difference Result 11242 states and 16851 transitions.
[2025-03-03 16:44:48,625 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-03 16:44:48,626 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 679.0) internal successors, (2716), 4 states have internal predecessors, (2716), 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 2993
[2025-03-03 16:44:48,630 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-03 16:44:48,644 INFO  L225             Difference]: With dead ends: 11242
[2025-03-03 16:44:48,645 INFO  L226             Difference]: Without dead ends: 5973
[2025-03-03 16:44:48,650 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-03 16:44:48,650 INFO  L435           NwaCegarLoop]: 6750 mSDtfsCounter, 0 mSDsluCounter, 13492 mSDsCounter, 0 mSdLazyCounter, 4060 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20242 SdHoareTripleChecker+Invalid, 4060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time
[2025-03-03 16:44:48,651 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20242 Invalid, 4060 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4060 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time]
[2025-03-03 16:44:48,658 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5973 states.
[2025-03-03 16:44:48,739 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5973 to 5971.
[2025-03-03 16:44:48,746 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5971 states, 5970 states have (on average 1.4989949748743718) internal successors, (8949), 5970 states have internal predecessors, (8949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 16:44:48,756 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5971 states to 5971 states and 8949 transitions.
[2025-03-03 16:44:48,756 INFO  L78                 Accepts]: Start accepts. Automaton has 5971 states and 8949 transitions. Word has length 2993
[2025-03-03 16:44:48,759 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-03 16:44:48,760 INFO  L471      AbstractCegarLoop]: Abstraction has 5971 states and 8949 transitions.
[2025-03-03 16:44:48,761 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 679.0) internal successors, (2716), 4 states have internal predecessors, (2716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 16:44:48,761 INFO  L276                IsEmpty]: Start isEmpty. Operand 5971 states and 8949 transitions.
[2025-03-03 16:44:48,851 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2995
[2025-03-03 16:44:48,851 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 16:44:48,852 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 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]
[2025-03-03 16:44:48,853 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2025-03-03 16:44:48,853 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 16:44:48,854 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 16:44:48,855 INFO  L85        PathProgramCache]: Analyzing trace with hash -316037942, now seen corresponding path program 1 times
[2025-03-03 16:44:48,855 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 16:44:48,855 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326394942]
[2025-03-03 16:44:48,856 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 16:44:48,856 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 16:44:49,147 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2994 statements into 1 equivalence classes.
[2025-03-03 16:44:51,153 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2994 of 2994 statements.
[2025-03-03 16:44:51,153 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 16:44:51,153 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 16:44:55,036 INFO  L134       CoverageAnalysis]: Checked inductivity of 286 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked.
[2025-03-03 16:44:55,036 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 16:44:55,038 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326394942]
[2025-03-03 16:44:55,039 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326394942] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-03 16:44:55,039 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-03 16:44:55,039 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-03 16:44:55,039 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088727928]
[2025-03-03 16:44:55,039 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-03 16:44:55,041 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-03 16:44:55,041 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 16:44:55,043 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-03 16:44:55,043 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-03 16:44:55,044 INFO  L87              Difference]: Start difference. First operand 5971 states and 8949 transitions. Second operand  has 4 states, 4 states have (on average 679.75) internal successors, (2719), 4 states have internal predecessors, (2719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 16:44:56,433 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-03 16:44:56,433 INFO  L93              Difference]: Finished difference Result 11250 states and 16861 transitions.
[2025-03-03 16:44:56,433 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-03 16:44:56,434 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 679.75) internal successors, (2719), 4 states have internal predecessors, (2719), 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 2994
[2025-03-03 16:44:56,436 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-03 16:44:56,444 INFO  L225             Difference]: With dead ends: 11250
[2025-03-03 16:44:56,444 INFO  L226             Difference]: Without dead ends: 5975
[2025-03-03 16:44:56,449 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-03 16:44:56,450 INFO  L435           NwaCegarLoop]: 6750 mSDtfsCounter, 0 mSDsluCounter, 13492 mSDsCounter, 0 mSdLazyCounter, 4060 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20242 SdHoareTripleChecker+Invalid, 4060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time
[2025-03-03 16:44:56,450 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20242 Invalid, 4060 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4060 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time]
[2025-03-03 16:44:56,456 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5975 states.
[2025-03-03 16:44:56,508 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5975 to 5973.
[2025-03-03 16:44:56,515 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5973 states, 5972 states have (on average 1.4988278633623577) internal successors, (8951), 5972 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)
[2025-03-03 16:44:56,521 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5973 states to 5973 states and 8951 transitions.
[2025-03-03 16:44:56,521 INFO  L78                 Accepts]: Start accepts. Automaton has 5973 states and 8951 transitions. Word has length 2994
[2025-03-03 16:44:56,523 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-03 16:44:56,523 INFO  L471      AbstractCegarLoop]: Abstraction has 5973 states and 8951 transitions.
[2025-03-03 16:44:56,524 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 679.75) internal successors, (2719), 4 states have internal predecessors, (2719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 16:44:56,524 INFO  L276                IsEmpty]: Start isEmpty. Operand 5973 states and 8951 transitions.
[2025-03-03 16:44:56,573 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2996
[2025-03-03 16:44:56,574 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 16:44:56,575 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-03 16:44:56,576 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2025-03-03 16:44:56,576 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 16:44:56,577 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 16:44:56,578 INFO  L85        PathProgramCache]: Analyzing trace with hash -1338779989, now seen corresponding path program 1 times
[2025-03-03 16:44:56,579 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 16:44:56,579 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821919425]
[2025-03-03 16:44:56,579 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 16:44:56,579 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 16:44:56,867 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2995 statements into 1 equivalence classes.
[2025-03-03 16:44:58,891 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2995 of 2995 statements.
[2025-03-03 16:44:58,892 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 16:44:58,892 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 16:45:03,464 INFO  L134       CoverageAnalysis]: Checked inductivity of 286 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked.
[2025-03-03 16:45:03,465 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 16:45:03,465 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821919425]
[2025-03-03 16:45:03,465 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821919425] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-03 16:45:03,465 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-03 16:45:03,465 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-03-03 16:45:03,465 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523600368]
[2025-03-03 16:45:03,465 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-03 16:45:03,472 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-03-03 16:45:03,472 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 16:45:03,474 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-03-03 16:45:03,474 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2025-03-03 16:45:03,475 INFO  L87              Difference]: Start difference. First operand 5973 states and 8951 transitions. Second operand  has 5 states, 5 states have (on average 544.4) internal successors, (2722), 5 states have internal predecessors, (2722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 16:45:05,362 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-03 16:45:05,362 INFO  L93              Difference]: Finished difference Result 11258 states and 16871 transitions.
[2025-03-03 16:45:05,363 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-03 16:45:05,364 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 544.4) internal successors, (2722), 5 states have internal predecessors, (2722), 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 2995
[2025-03-03 16:45:05,366 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-03 16:45:05,374 INFO  L225             Difference]: With dead ends: 11258
[2025-03-03 16:45:05,374 INFO  L226             Difference]: Without dead ends: 5977
[2025-03-03 16:45:05,379 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2025-03-03 16:45:05,380 INFO  L435           NwaCegarLoop]: 6750 mSDtfsCounter, 0 mSDsluCounter, 20237 mSDsCounter, 0 mSdLazyCounter, 5416 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 26987 SdHoareTripleChecker+Invalid, 5417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time
[2025-03-03 16:45:05,380 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 26987 Invalid, 5417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5416 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time]
[2025-03-03 16:45:05,385 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5977 states.
[2025-03-03 16:45:05,433 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5977 to 5975.
[2025-03-03 16:45:05,441 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5975 states, 5974 states have (on average 1.4986608637428858) internal successors, (8953), 5974 states have internal predecessors, (8953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 16:45:05,448 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5975 states to 5975 states and 8953 transitions.
[2025-03-03 16:45:05,448 INFO  L78                 Accepts]: Start accepts. Automaton has 5975 states and 8953 transitions. Word has length 2995
[2025-03-03 16:45:05,450 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-03 16:45:05,450 INFO  L471      AbstractCegarLoop]: Abstraction has 5975 states and 8953 transitions.
[2025-03-03 16:45:05,451 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 544.4) internal successors, (2722), 5 states have internal predecessors, (2722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-03-03 16:45:05,451 INFO  L276                IsEmpty]: Start isEmpty. Operand 5975 states and 8953 transitions.
[2025-03-03 16:45:05,555 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2997
[2025-03-03 16:45:05,555 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 16:45:05,556 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2025-03-03 16:45:05,557 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2025-03-03 16:45:05,557 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 16:45:05,558 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 16:45:05,559 INFO  L85        PathProgramCache]: Analyzing trace with hash -472524699, now seen corresponding path program 1 times
[2025-03-03 16:45:05,559 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 16:45:05,559 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274522632]
[2025-03-03 16:45:05,560 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 16:45:05,560 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 16:45:05,818 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2996 statements into 1 equivalence classes.
[2025-03-03 16:45:14,355 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2996 of 2996 statements.
[2025-03-03 16:45:14,356 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 16:45:14,356 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat