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


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


Checking for ERROR reachability
Using default analysis
Version 8fc3dc66
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.telephony.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 9ae6b5b338b731b5177e6d265b9da93e2ea955d36981e57412e1c26abe293401
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-8fc3dc6-m
[2025-03-16 22:40:04,062 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-03-16 22:40:04,118 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf
[2025-03-16 22:40:04,124 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-03-16 22:40:04,125 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-03-16 22:40:04,143 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-03-16 22:40:04,144 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-03-16 22:40:04,144 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-03-16 22:40:04,145 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2025-03-16 22:40:04,145 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2025-03-16 22:40:04,145 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-03-16 22:40:04,145 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-03-16 22:40:04,146 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-03-16 22:40:04,146 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-03-16 22:40:04,146 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-03-16 22:40:04,146 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2025-03-16 22:40:04,146 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2025-03-16 22:40:04,146 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2025-03-16 22:40:04,146 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2025-03-16 22:40:04,146 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2025-03-16 22:40:04,146 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2025-03-16 22:40:04,147 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2025-03-16 22:40:04,147 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2025-03-16 22:40:04,147 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2025-03-16 22:40:04,147 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2025-03-16 22:40:04,147 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2025-03-16 22:40:04,147 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-03-16 22:40:04,147 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2025-03-16 22:40:04,147 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-03-16 22:40:04,147 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-03-16 22:40:04,147 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-03-16 22:40:04,148 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-03-16 22:40:04,148 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2025-03-16 22:40:04,148 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2025-03-16 22:40:04,148 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-03-16 22:40:04,148 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-03-16 22:40:04,148 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2025-03-16 22:40:04,148 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-03-16 22:40:04,148 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2025-03-16 22:40:04,148 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-03-16 22:40:04,148 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 -> 9ae6b5b338b731b5177e6d265b9da93e2ea955d36981e57412e1c26abe293401
[2025-03-16 22:40:04,377 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-03-16 22:40:04,386 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-03-16 22:40:04,389 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-03-16 22:40:04,390 INFO  L270        PluginConnector]: Initializing CDTParser...
[2025-03-16 22:40:04,390 INFO  L274        PluginConnector]: CDTParser initialized
[2025-03-16 22:40:04,392 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.2.prop1-back-serstep.c
[2025-03-16 22:40:05,541 INFO  L533              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3afb69bb9/0d0630557f1f4b40b1e9dea3af9f8369/FLAG1f9df631d
[2025-03-16 22:40:05,945 INFO  L384              CDTParser]: Found 1 translation units.
[2025-03-16 22:40:05,945 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.2.prop1-back-serstep.c
[2025-03-16 22:40:05,974 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3afb69bb9/0d0630557f1f4b40b1e9dea3af9f8369/FLAG1f9df631d
[2025-03-16 22:40:06,115 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3afb69bb9/0d0630557f1f4b40b1e9dea3af9f8369
[2025-03-16 22:40:06,118 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-03-16 22:40:06,119 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2025-03-16 22:40:06,120 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2025-03-16 22:40:06,120 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2025-03-16 22:40:06,125 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2025-03-16 22:40:06,126 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 10:40:06" (1/1) ...
[2025-03-16 22:40:06,126 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59bfd7ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:40:06, skipping insertion in model container
[2025-03-16 22:40:06,127 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 10:40:06" (1/1) ...
[2025-03-16 22:40:06,205 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2025-03-16 22:40:06,361 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.telephony.2.prop1-back-serstep.c[1177,1190]
[2025-03-16 22:40:06,807 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-03-16 22:40:06,815 INFO  L200         MainTranslator]: Completed pre-run
[2025-03-16 22:40:06,822 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.telephony.2.prop1-back-serstep.c[1177,1190]
[2025-03-16 22:40:07,119 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-03-16 22:40:07,130 INFO  L204         MainTranslator]: Completed translation
[2025-03-16 22:40:07,131 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:40:07 WrapperNode
[2025-03-16 22:40:07,131 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2025-03-16 22:40:07,132 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2025-03-16 22:40:07,132 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2025-03-16 22:40:07,132 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2025-03-16 22:40:07,137 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:40:07" (1/1) ...
[2025-03-16 22:40:07,235 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:40:07" (1/1) ...
[2025-03-16 22:40:08,655 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 18222
[2025-03-16 22:40:08,655 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2025-03-16 22:40:08,656 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-03-16 22:40:08,656 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-03-16 22:40:08,656 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-03-16 22:40:08,662 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:40:07" (1/1) ...
[2025-03-16 22:40:08,662 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:40:07" (1/1) ...
[2025-03-16 22:40:08,898 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:40:07" (1/1) ...
[2025-03-16 22:40:09,046 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].
[2025-03-16 22:40:09,047 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:40:07" (1/1) ...
[2025-03-16 22:40:09,047 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:40:07" (1/1) ...
[2025-03-16 22:40:09,549 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:40:07" (1/1) ...
[2025-03-16 22:40:09,585 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:40:07" (1/1) ...
[2025-03-16 22:40:09,632 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:40:07" (1/1) ...
[2025-03-16 22:40:09,674 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:40:07" (1/1) ...
[2025-03-16 22:40:09,902 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-03-16 22:40:09,903 INFO  L112        PluginConnector]: ------------------------IcfgBuilder----------------------------
[2025-03-16 22:40:09,903 INFO  L270        PluginConnector]: Initializing IcfgBuilder...
[2025-03-16 22:40:09,903 INFO  L274        PluginConnector]: IcfgBuilder initialized
[2025-03-16 22:40:09,904 INFO  L184        PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:40:07" (1/1) ...
[2025-03-16 22:40:09,916 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-03-16 22:40:09,935 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-16 22:40:09,953 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)
[2025-03-16 22:40:09,959 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
[2025-03-16 22:40:09,978 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2025-03-16 22:40:09,979 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2025-03-16 22:40:09,979 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2025-03-16 22:40:09,979 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2025-03-16 22:40:10,782 INFO  L256             CfgBuilder]: Building ICFG
[2025-03-16 22:40:10,787 INFO  L286             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-03-16 22:40:48,963 INFO  L?                        ?]: Removed 9807 outVars from TransFormulas that were not future-live.
[2025-03-16 22:40:48,963 INFO  L307             CfgBuilder]: Performing block encoding
[2025-03-16 22:40:49,339 INFO  L331             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2025-03-16 22:40:49,340 INFO  L336             CfgBuilder]: Removed 0 assume(true) statements.
[2025-03-16 22:40:49,340 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 10:40:49 BoogieIcfgContainer
[2025-03-16 22:40:49,340 INFO  L131        PluginConnector]: ------------------------ END IcfgBuilder----------------------------
[2025-03-16 22:40:49,342 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-03-16 22:40:49,342 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-03-16 22:40:49,346 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-03-16 22:40:49,346 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.03 10:40:06" (1/3) ...
[2025-03-16 22:40:49,347 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7691ebd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 10:40:49, skipping insertion in model container
[2025-03-16 22:40:49,347 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 10:40:07" (2/3) ...
[2025-03-16 22:40:49,348 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7691ebd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 10:40:49, skipping insertion in model container
[2025-03-16 22:40:49,348 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 10:40:49" (3/3) ...
[2025-03-16 22:40:49,349 INFO  L128   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.telephony.2.prop1-back-serstep.c
[2025-03-16 22:40:49,369 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-03-16 22:40:49,371 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.telephony.2.prop1-back-serstep.c that has 1 procedures, 6406 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2025-03-16 22:40:49,535 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-03-16 22:40:49,544 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;@64bdf4cb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-03-16 22:40:49,545 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-03-16 22:40:49,562 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 6406 states, 6404 states have (on average 1.5042161149281699) internal successors, (9633), 6405 states have internal predecessors, (9633), 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)
[2025-03-16 22:40:49,588 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 521
[2025-03-16 22:40:49,589 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 22:40:49,589 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-16 22:40:49,590 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 22:40:49,597 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 22:40:49,597 INFO  L85        PathProgramCache]: Analyzing trace with hash 26892069, now seen corresponding path program 1 times
[2025-03-16 22:40:49,602 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 22:40:49,602 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169937080]
[2025-03-16 22:40:49,603 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 22:40:49,603 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 22:40:49,738 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 520 statements into 1 equivalence classes.
[2025-03-16 22:40:50,069 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 520 of 520 statements.
[2025-03-16 22:40:50,070 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 22:40:50,070 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 22:40:51,473 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-16 22:40:51,475 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-16 22:40:51,477 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169937080]
[2025-03-16 22:40:51,478 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169937080] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-16 22:40:51,478 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-16 22:40:51,478 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-16 22:40:51,479 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258379187]
[2025-03-16 22:40:51,480 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-16 22:40:51,483 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-16 22:40:51,483 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-16 22:40:51,500 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-16 22:40:51,500 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-16 22:40:51,513 INFO  L87              Difference]: Start difference. First operand  has 6406 states, 6404 states have (on average 1.5042161149281699) internal successors, (9633), 6405 states have internal predecessors, (9633), 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 130.0) internal successors, (520), 4 states have internal predecessors, (520), 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)
[2025-03-16 22:40:54,082 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-16 22:40:54,083 INFO  L93              Difference]: Finished difference Result 12587 states and 18931 transitions.
[2025-03-16 22:40:54,084 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-16 22:40:54,085 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 130.0) internal successors, (520), 4 states have internal predecessors, (520), 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 520
[2025-03-16 22:40:54,086 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-16 22:40:54,113 INFO  L225             Difference]: With dead ends: 12587
[2025-03-16 22:40:54,113 INFO  L226             Difference]: Without dead ends: 6406
[2025-03-16 22:40:54,128 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
[2025-03-16 22:40:54,131 INFO  L435           NwaCegarLoop]: 8042 mSDtfsCounter, 0 mSDsluCounter, 16079 mSDsCounter, 0 mSdLazyCounter, 4768 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24121 SdHoareTripleChecker+Invalid, 4768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time
[2025-03-16 22:40:54,133 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24121 Invalid, 4768 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 4768 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time]
[2025-03-16 22:40:54,154 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6406 states.
[2025-03-16 22:40:54,294 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6406 to 6406.
[2025-03-16 22:40:54,304 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6406 states, 6405 states have (on average 1.5038251366120219) internal successors, (9632), 6405 states have internal predecessors, (9632), 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)
[2025-03-16 22:40:54,322 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6406 states to 6406 states and 9632 transitions.
[2025-03-16 22:40:54,323 INFO  L78                 Accepts]: Start accepts. Automaton has 6406 states and 9632 transitions. Word has length 520
[2025-03-16 22:40:54,325 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-16 22:40:54,325 INFO  L471      AbstractCegarLoop]: Abstraction has 6406 states and 9632 transitions.
[2025-03-16 22:40:54,325 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 130.0) internal successors, (520), 4 states have internal predecessors, (520), 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)
[2025-03-16 22:40:54,325 INFO  L276                IsEmpty]: Start isEmpty. Operand 6406 states and 9632 transitions.
[2025-03-16 22:40:54,331 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 522
[2025-03-16 22:40:54,331 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 22:40:54,333 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-16 22:40:54,333 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2025-03-16 22:40:54,333 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 22:40:54,334 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 22:40:54,334 INFO  L85        PathProgramCache]: Analyzing trace with hash 838342686, now seen corresponding path program 1 times
[2025-03-16 22:40:54,334 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 22:40:54,334 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114637332]
[2025-03-16 22:40:54,335 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 22:40:54,335 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 22:40:54,509 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 521 statements into 1 equivalence classes.
[2025-03-16 22:40:54,604 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 521 of 521 statements.
[2025-03-16 22:40:54,604 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 22:40:54,604 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 22:40:55,117 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-16 22:40:55,117 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-16 22:40:55,117 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114637332]
[2025-03-16 22:40:55,117 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114637332] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-16 22:40:55,117 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-16 22:40:55,118 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-16 22:40:55,118 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111703709]
[2025-03-16 22:40:55,118 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-16 22:40:55,120 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-16 22:40:55,120 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-16 22:40:55,121 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-16 22:40:55,121 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-16 22:40:55,122 INFO  L87              Difference]: Start difference. First operand 6406 states and 9632 transitions. Second operand  has 4 states, 4 states have (on average 130.25) internal successors, (521), 4 states have internal predecessors, (521), 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)
[2025-03-16 22:40:57,265 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-16 22:40:57,265 INFO  L93              Difference]: Finished difference Result 12589 states and 18930 transitions.
[2025-03-16 22:40:57,266 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-16 22:40:57,266 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 130.25) internal successors, (521), 4 states have internal predecessors, (521), 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 521
[2025-03-16 22:40:57,267 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-16 22:40:57,284 INFO  L225             Difference]: With dead ends: 12589
[2025-03-16 22:40:57,285 INFO  L226             Difference]: Without dead ends: 6408
[2025-03-16 22:40:57,292 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
[2025-03-16 22:40:57,296 INFO  L435           NwaCegarLoop]: 8042 mSDtfsCounter, 0 mSDsluCounter, 16076 mSDsCounter, 0 mSdLazyCounter, 4771 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24118 SdHoareTripleChecker+Invalid, 4771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time
[2025-03-16 22:40:57,297 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24118 Invalid, 4771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4771 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time]
[2025-03-16 22:40:57,305 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6408 states.
[2025-03-16 22:40:57,378 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6408 to 6408.
[2025-03-16 22:40:57,390 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6408 states, 6407 states have (on average 1.5036678632745435) internal successors, (9634), 6407 states have internal predecessors, (9634), 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)
[2025-03-16 22:40:57,401 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6408 states to 6408 states and 9634 transitions.
[2025-03-16 22:40:57,401 INFO  L78                 Accepts]: Start accepts. Automaton has 6408 states and 9634 transitions. Word has length 521
[2025-03-16 22:40:57,403 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-16 22:40:57,403 INFO  L471      AbstractCegarLoop]: Abstraction has 6408 states and 9634 transitions.
[2025-03-16 22:40:57,404 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 130.25) internal successors, (521), 4 states have internal predecessors, (521), 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)
[2025-03-16 22:40:57,404 INFO  L276                IsEmpty]: Start isEmpty. Operand 6408 states and 9634 transitions.
[2025-03-16 22:40:57,409 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 523
[2025-03-16 22:40:57,409 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 22:40:57,409 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-16 22:40:57,409 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-03-16 22:40:57,409 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 22:40:57,410 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 22:40:57,410 INFO  L85        PathProgramCache]: Analyzing trace with hash -2144629184, now seen corresponding path program 1 times
[2025-03-16 22:40:57,410 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 22:40:57,410 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566531125]
[2025-03-16 22:40:57,410 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 22:40:57,410 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 22:40:57,493 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 522 statements into 1 equivalence classes.
[2025-03-16 22:40:57,579 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 522 of 522 statements.
[2025-03-16 22:40:57,579 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 22:40:57,580 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 22:40:58,390 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-16 22:40:58,390 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-16 22:40:58,390 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566531125]
[2025-03-16 22:40:58,391 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566531125] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-16 22:40:58,391 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-16 22:40:58,391 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-16 22:40:58,391 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603282779]
[2025-03-16 22:40:58,391 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-16 22:40:58,392 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-16 22:40:58,392 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-16 22:40:58,393 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-16 22:40:58,393 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-16 22:40:58,393 INFO  L87              Difference]: Start difference. First operand 6408 states and 9634 transitions. Second operand  has 4 states, 4 states have (on average 130.5) internal successors, (522), 4 states have internal predecessors, (522), 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)
[2025-03-16 22:41:00,797 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-16 22:41:00,798 INFO  L93              Difference]: Finished difference Result 12593 states and 18934 transitions.
[2025-03-16 22:41:00,798 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-16 22:41:00,799 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 130.5) internal successors, (522), 4 states have internal predecessors, (522), 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 522
[2025-03-16 22:41:00,799 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-16 22:41:00,813 INFO  L225             Difference]: With dead ends: 12593
[2025-03-16 22:41:00,813 INFO  L226             Difference]: Without dead ends: 6410
[2025-03-16 22:41:00,819 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
[2025-03-16 22:41:00,820 INFO  L435           NwaCegarLoop]: 8042 mSDtfsCounter, 0 mSDsluCounter, 16076 mSDsCounter, 0 mSdLazyCounter, 4771 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24118 SdHoareTripleChecker+Invalid, 4771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time
[2025-03-16 22:41:00,820 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24118 Invalid, 4771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4771 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time]
[2025-03-16 22:41:00,827 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6410 states.
[2025-03-16 22:41:00,889 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6410 to 6410.
[2025-03-16 22:41:00,897 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6410 states, 6409 states have (on average 1.5035106880948665) internal successors, (9636), 6409 states have internal predecessors, (9636), 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)
[2025-03-16 22:41:00,906 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6410 states to 6410 states and 9636 transitions.
[2025-03-16 22:41:00,907 INFO  L78                 Accepts]: Start accepts. Automaton has 6410 states and 9636 transitions. Word has length 522
[2025-03-16 22:41:00,908 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-16 22:41:00,908 INFO  L471      AbstractCegarLoop]: Abstraction has 6410 states and 9636 transitions.
[2025-03-16 22:41:00,909 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 130.5) internal successors, (522), 4 states have internal predecessors, (522), 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)
[2025-03-16 22:41:00,909 INFO  L276                IsEmpty]: Start isEmpty. Operand 6410 states and 9636 transitions.
[2025-03-16 22:41:00,915 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 524
[2025-03-16 22:41:00,915 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 22:41:00,915 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-16 22:41:00,916 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-03-16 22:41:00,916 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 22:41:00,917 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 22:41:00,917 INFO  L85        PathProgramCache]: Analyzing trace with hash -170623357, now seen corresponding path program 1 times
[2025-03-16 22:41:00,917 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 22:41:00,918 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161929072]
[2025-03-16 22:41:00,918 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 22:41:00,918 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 22:41:00,997 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 523 statements into 1 equivalence classes.
[2025-03-16 22:41:01,059 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 523 of 523 statements.
[2025-03-16 22:41:01,059 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 22:41:01,059 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 22:41:01,732 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-16 22:41:01,734 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-16 22:41:01,734 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161929072]
[2025-03-16 22:41:01,735 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161929072] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-16 22:41:01,735 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-16 22:41:01,735 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-16 22:41:01,735 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827871530]
[2025-03-16 22:41:01,735 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-16 22:41:01,735 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-03-16 22:41:01,735 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-16 22:41:01,736 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-03-16 22:41:01,736 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2025-03-16 22:41:01,736 INFO  L87              Difference]: Start difference. First operand 6410 states and 9636 transitions. Second operand  has 5 states, 5 states have (on average 104.6) internal successors, (523), 4 states have internal predecessors, (523), 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)
[2025-03-16 22:41:04,802 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-16 22:41:04,802 INFO  L93              Difference]: Finished difference Result 18766 states and 28215 transitions.
[2025-03-16 22:41:04,803 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2025-03-16 22:41:04,803 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 104.6) internal successors, (523), 4 states have internal predecessors, (523), 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 523
[2025-03-16 22:41:04,804 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-16 22:41:04,828 INFO  L225             Difference]: With dead ends: 18766
[2025-03-16 22:41:04,828 INFO  L226             Difference]: Without dead ends: 12581
[2025-03-16 22:41:04,837 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2025-03-16 22:41:04,838 INFO  L435           NwaCegarLoop]: 8040 mSDtfsCounter, 9099 mSDsluCounter, 23834 mSDsCounter, 0 mSdLazyCounter, 6309 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9099 SdHoareTripleChecker+Valid, 31874 SdHoareTripleChecker+Invalid, 6309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time
[2025-03-16 22:41:04,838 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [9099 Valid, 31874 Invalid, 6309 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 6309 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time]
[2025-03-16 22:41:04,851 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 12581 states.
[2025-03-16 22:41:04,943 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 12581 to 7210.
[2025-03-16 22:41:04,951 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7210 states, 7209 states have (on average 1.5031210986267165) internal successors, (10836), 7209 states have internal predecessors, (10836), 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)
[2025-03-16 22:41:04,959 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7210 states to 7210 states and 10836 transitions.
[2025-03-16 22:41:04,959 INFO  L78                 Accepts]: Start accepts. Automaton has 7210 states and 10836 transitions. Word has length 523
[2025-03-16 22:41:04,961 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-16 22:41:04,961 INFO  L471      AbstractCegarLoop]: Abstraction has 7210 states and 10836 transitions.
[2025-03-16 22:41:04,961 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 104.6) internal successors, (523), 4 states have internal predecessors, (523), 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)
[2025-03-16 22:41:04,961 INFO  L276                IsEmpty]: Start isEmpty. Operand 7210 states and 10836 transitions.
[2025-03-16 22:41:05,014 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3533
[2025-03-16 22:41:05,015 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 22:41:05,017 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2025-03-16 22:41:05,017 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-03-16 22:41:05,017 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 22:41:05,019 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 22:41:05,020 INFO  L85        PathProgramCache]: Analyzing trace with hash 1315769269, now seen corresponding path program 1 times
[2025-03-16 22:41:05,020 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 22:41:05,020 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332115087]
[2025-03-16 22:41:05,020 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 22:41:05,021 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 22:41:05,350 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3532 statements into 1 equivalence classes.
[2025-03-16 22:41:09,857 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3532 of 3532 statements.
[2025-03-16 22:41:09,857 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 22:41:09,858 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-16 22:41:14,069 INFO  L134       CoverageAnalysis]: Checked inductivity of 406 backedges. 406 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-16 22:41:14,070 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-16 22:41:14,070 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332115087]
[2025-03-16 22:41:14,070 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332115087] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-16 22:41:14,070 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-16 22:41:14,070 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2025-03-16 22:41:14,070 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619499724]
[2025-03-16 22:41:14,070 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-16 22:41:14,073 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2025-03-16 22:41:14,074 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-16 22:41:14,076 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2025-03-16 22:41:14,076 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-03-16 22:41:14,076 INFO  L87              Difference]: Start difference. First operand 7210 states and 10836 transitions. Second operand  has 3 states, 3 states have (on average 1177.3333333333333) internal successors, (3532), 3 states have internal predecessors, (3532), 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)
[2025-03-16 22:41:15,762 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-16 22:41:15,763 INFO  L93              Difference]: Finished difference Result 13396 states and 20137 transitions.
[2025-03-16 22:41:15,763 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2025-03-16 22:41:15,765 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 1177.3333333333333) internal successors, (3532), 3 states have internal predecessors, (3532), 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 3532
[2025-03-16 22:41:15,765 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-16 22:41:15,779 INFO  L225             Difference]: With dead ends: 13396
[2025-03-16 22:41:15,779 INFO  L226             Difference]: Without dead ends: 7211
[2025-03-16 22:41:15,785 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-03-16 22:41:15,787 INFO  L435           NwaCegarLoop]: 8043 mSDtfsCounter, 0 mSDsluCounter, 8038 mSDsCounter, 0 mSdLazyCounter, 3178 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16081 SdHoareTripleChecker+Invalid, 3178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time
[2025-03-16 22:41:15,788 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16081 Invalid, 3178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3178 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time]
[2025-03-16 22:41:15,799 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7211 states.
[2025-03-16 22:41:15,893 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7211 to 7211.
[2025-03-16 22:41:15,902 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7211 states, 7210 states have (on average 1.5030513176144245) internal successors, (10837), 7210 states have internal predecessors, (10837), 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)
[2025-03-16 22:41:15,913 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7211 states to 7211 states and 10837 transitions.
[2025-03-16 22:41:15,913 INFO  L78                 Accepts]: Start accepts. Automaton has 7211 states and 10837 transitions. Word has length 3532
[2025-03-16 22:41:15,914 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-16 22:41:15,914 INFO  L471      AbstractCegarLoop]: Abstraction has 7211 states and 10837 transitions.
[2025-03-16 22:41:15,916 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 1177.3333333333333) internal successors, (3532), 3 states have internal predecessors, (3532), 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)
[2025-03-16 22:41:15,916 INFO  L276                IsEmpty]: Start isEmpty. Operand 7211 states and 10837 transitions.
[2025-03-16 22:41:16,003 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3533
[2025-03-16 22:41:16,004 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-16 22:41:16,005 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2025-03-16 22:41:16,006 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2025-03-16 22:41:16,006 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-16 22:41:16,007 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-16 22:41:16,008 INFO  L85        PathProgramCache]: Analyzing trace with hash 1348149142, now seen corresponding path program 1 times
[2025-03-16 22:41:16,008 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-16 22:41:16,008 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90843682]
[2025-03-16 22:41:16,009 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-16 22:41:16,009 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-16 22:41:16,310 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3532 statements into 1 equivalence classes.
[2025-03-16 22:41:18,531 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3532 of 3532 statements.
[2025-03-16 22:41:18,531 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-16 22:41:18,531 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat