./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.driving_phils.4.prop1-back-serstep.c --full-output --architecture 64bit


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


Checking for ERROR reachability
Using default analysis
Version e2fb8bed
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.driving_phils.4.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 4266779bbe6f4bb49ffaaab7243596bd26eeda5dc295f430486a067412960e81
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-e2fb8be-m
[2025-03-08 08:35:14,145 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-03-08 08:35:14,189 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf
[2025-03-08 08:35:14,193 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-03-08 08:35:14,193 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-03-08 08:35:14,206 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-03-08 08:35:14,207 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-03-08 08:35:14,207 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-03-08 08:35:14,207 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2025-03-08 08:35:14,208 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2025-03-08 08:35:14,208 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-03-08 08:35:14,208 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-03-08 08:35:14,208 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-03-08 08:35:14,208 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-03-08 08:35:14,208 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-03-08 08:35:14,208 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2025-03-08 08:35:14,208 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2025-03-08 08:35:14,208 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2025-03-08 08:35:14,208 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2025-03-08 08:35:14,208 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2025-03-08 08:35:14,209 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2025-03-08 08:35:14,209 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2025-03-08 08:35:14,209 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2025-03-08 08:35:14,209 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2025-03-08 08:35:14,209 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2025-03-08 08:35:14,209 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2025-03-08 08:35:14,209 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-03-08 08:35:14,209 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2025-03-08 08:35:14,209 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-03-08 08:35:14,209 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-03-08 08:35:14,209 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-03-08 08:35:14,209 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-03-08 08:35:14,209 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2025-03-08 08:35:14,209 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2025-03-08 08:35:14,209 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-03-08 08:35:14,209 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-03-08 08:35:14,210 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2025-03-08 08:35:14,210 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-03-08 08:35:14,210 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2025-03-08 08:35:14,210 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-03-08 08:35:14,210 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 -> 4266779bbe6f4bb49ffaaab7243596bd26eeda5dc295f430486a067412960e81
[2025-03-08 08:35:14,434 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-03-08 08:35:14,440 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-03-08 08:35:14,443 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-03-08 08:35:14,444 INFO  L270        PluginConnector]: Initializing CDTParser...
[2025-03-08 08:35:14,445 INFO  L274        PluginConnector]: CDTParser initialized
[2025-03-08 08:35:14,446 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.driving_phils.4.prop1-back-serstep.c
[2025-03-08 08:35:15,545 INFO  L533              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02f7536f2/499913589270449c91183357f6216a18/FLAG735c9659e
[2025-03-08 08:35:15,891 INFO  L384              CDTParser]: Found 1 translation units.
[2025-03-08 08:35:15,891 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.driving_phils.4.prop1-back-serstep.c
[2025-03-08 08:35:15,912 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02f7536f2/499913589270449c91183357f6216a18/FLAG735c9659e
[2025-03-08 08:35:16,108 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02f7536f2/499913589270449c91183357f6216a18
[2025-03-08 08:35:16,110 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-03-08 08:35:16,111 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2025-03-08 08:35:16,112 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2025-03-08 08:35:16,112 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2025-03-08 08:35:16,115 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2025-03-08 08:35:16,115 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 08:35:16" (1/1) ...
[2025-03-08 08:35:16,116 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@811b0f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:35:16, skipping insertion in model container
[2025-03-08 08:35:16,116 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 08:35:16" (1/1) ...
[2025-03-08 08:35:16,210 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2025-03-08 08:35:16,394 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.driving_phils.4.prop1-back-serstep.c[1181,1194]
[2025-03-08 08:35:16,940 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-03-08 08:35:16,949 INFO  L200         MainTranslator]: Completed pre-run
[2025-03-08 08:35:16,956 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.driving_phils.4.prop1-back-serstep.c[1181,1194]
[2025-03-08 08:35:17,288 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-03-08 08:35:17,300 INFO  L204         MainTranslator]: Completed translation
[2025-03-08 08:35:17,301 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:35:17 WrapperNode
[2025-03-08 08:35:17,301 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2025-03-08 08:35:17,302 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2025-03-08 08:35:17,303 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2025-03-08 08:35:17,303 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2025-03-08 08:35:17,308 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:35:17" (1/1) ...
[2025-03-08 08:35:17,399 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:35:17" (1/1) ...
[2025-03-08 08:35:18,481 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 18688
[2025-03-08 08:35:18,482 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2025-03-08 08:35:18,482 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-03-08 08:35:18,483 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-03-08 08:35:18,483 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-03-08 08:35:18,489 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:35:17" (1/1) ...
[2025-03-08 08:35:18,489 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:35:17" (1/1) ...
[2025-03-08 08:35:18,845 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:35:17" (1/1) ...
[2025-03-08 08:35:19,085 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].
[2025-03-08 08:35:19,085 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:35:17" (1/1) ...
[2025-03-08 08:35:19,085 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:35:17" (1/1) ...
[2025-03-08 08:35:19,310 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:35:17" (1/1) ...
[2025-03-08 08:35:19,350 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:35:17" (1/1) ...
[2025-03-08 08:35:19,395 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:35:17" (1/1) ...
[2025-03-08 08:35:19,435 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:35:17" (1/1) ...
[2025-03-08 08:35:19,590 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-03-08 08:35:19,591 INFO  L112        PluginConnector]: ------------------------IcfgBuilder----------------------------
[2025-03-08 08:35:19,591 INFO  L270        PluginConnector]: Initializing IcfgBuilder...
[2025-03-08 08:35:19,591 INFO  L274        PluginConnector]: IcfgBuilder initialized
[2025-03-08 08:35:19,592 INFO  L184        PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:35:17" (1/1) ...
[2025-03-08 08:35:19,595 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-03-08 08:35:19,603 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-08 08:35:19,614 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)
[2025-03-08 08:35:19,616 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
[2025-03-08 08:35:19,631 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2025-03-08 08:35:19,631 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2025-03-08 08:35:19,631 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2025-03-08 08:35:19,631 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2025-03-08 08:35:20,306 INFO  L256             CfgBuilder]: Building ICFG
[2025-03-08 08:35:20,308 INFO  L286             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-03-08 08:35:50,880 INFO  L?                        ?]: Removed 9900 outVars from TransFormulas that were not future-live.
[2025-03-08 08:35:50,881 INFO  L307             CfgBuilder]: Performing block encoding
[2025-03-08 08:35:51,599 INFO  L331             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2025-03-08 08:35:51,600 INFO  L336             CfgBuilder]: Removed 70 assume(true) statements.
[2025-03-08 08:35:51,600 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 08:35:51 BoogieIcfgContainer
[2025-03-08 08:35:51,600 INFO  L131        PluginConnector]: ------------------------ END IcfgBuilder----------------------------
[2025-03-08 08:35:51,602 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-03-08 08:35:51,603 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-03-08 08:35:51,606 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-03-08 08:35:51,607 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 08:35:16" (1/3) ...
[2025-03-08 08:35:51,607 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35855a51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 08:35:51, skipping insertion in model container
[2025-03-08 08:35:51,607 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 08:35:17" (2/3) ...
[2025-03-08 08:35:51,608 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35855a51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 08:35:51, skipping insertion in model container
[2025-03-08 08:35:51,608 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 08:35:51" (3/3) ...
[2025-03-08 08:35:51,609 INFO  L128   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.driving_phils.4.prop1-back-serstep.c
[2025-03-08 08:35:51,636 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-03-08 08:35:51,637 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.driving_phils.4.prop1-back-serstep.c that has 1 procedures, 6492 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2025-03-08 08:35:51,784 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-03-08 08:35:51,794 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;@6bab4253, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-03-08 08:35:51,795 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-03-08 08:35:51,819 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 6492 states, 6490 states have (on average 1.5052388289676426) internal successors, (9769), 6491 states have internal predecessors, (9769), 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)
[2025-03-08 08:35:51,843 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 432
[2025-03-08 08:35:51,843 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-08 08:35:51,844 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]
[2025-03-08 08:35:51,844 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-08 08:35:51,852 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-08 08:35:51,853 INFO  L85        PathProgramCache]: Analyzing trace with hash 563030098, now seen corresponding path program 1 times
[2025-03-08 08:35:51,858 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-08 08:35:51,858 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657102714]
[2025-03-08 08:35:51,859 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-08 08:35:51,859 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-08 08:35:51,999 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 431 statements into 1 equivalence classes.
[2025-03-08 08:35:52,272 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 431 of 431 statements.
[2025-03-08 08:35:52,272 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-08 08:35:52,272 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-08 08:35:53,555 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-08 08:35:53,556 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-08 08:35:53,556 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657102714]
[2025-03-08 08:35:53,557 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657102714] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-08 08:35:53,557 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-08 08:35:53,557 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-08 08:35:53,558 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406880027]
[2025-03-08 08:35:53,559 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-08 08:35:53,562 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-08 08:35:53,563 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-08 08:35:53,579 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-08 08:35:53,580 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-08 08:35:53,592 INFO  L87              Difference]: Start difference. First operand  has 6492 states, 6490 states have (on average 1.5052388289676426) internal successors, (9769), 6491 states have internal predecessors, (9769), 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 107.75) internal successors, (431), 4 states have internal predecessors, (431), 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)
[2025-03-08 08:35:56,256 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-08 08:35:56,256 INFO  L93              Difference]: Finished difference Result 12773 states and 19225 transitions.
[2025-03-08 08:35:56,257 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-08 08:35:56,258 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 107.75) internal successors, (431), 4 states have internal predecessors, (431), 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 431
[2025-03-08 08:35:56,260 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-08 08:35:56,300 INFO  L225             Difference]: With dead ends: 12773
[2025-03-08 08:35:56,300 INFO  L226             Difference]: Without dead ends: 6491
[2025-03-08 08:35:56,317 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
[2025-03-08 08:35:56,320 INFO  L435           NwaCegarLoop]: 8125 mSDtfsCounter, 0 mSDsluCounter, 16245 mSDsCounter, 0 mSdLazyCounter, 4924 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24370 SdHoareTripleChecker+Invalid, 4924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time
[2025-03-08 08:35:56,321 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24370 Invalid, 4924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4924 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time]
[2025-03-08 08:35:56,345 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6491 states.
[2025-03-08 08:35:56,485 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6491 to 6491.
[2025-03-08 08:35:56,497 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6491 states, 6490 states have (on average 1.5049306625577812) internal successors, (9767), 6490 states have internal predecessors, (9767), 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)
[2025-03-08 08:35:56,517 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6491 states to 6491 states and 9767 transitions.
[2025-03-08 08:35:56,519 INFO  L78                 Accepts]: Start accepts. Automaton has 6491 states and 9767 transitions. Word has length 431
[2025-03-08 08:35:56,520 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-08 08:35:56,520 INFO  L471      AbstractCegarLoop]: Abstraction has 6491 states and 9767 transitions.
[2025-03-08 08:35:56,521 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 107.75) internal successors, (431), 4 states have internal predecessors, (431), 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)
[2025-03-08 08:35:56,521 INFO  L276                IsEmpty]: Start isEmpty. Operand 6491 states and 9767 transitions.
[2025-03-08 08:35:56,526 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 433
[2025-03-08 08:35:56,526 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-08 08:35:56,527 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]
[2025-03-08 08:35:56,527 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2025-03-08 08:35:56,528 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-08 08:35:56,528 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-08 08:35:56,528 INFO  L85        PathProgramCache]: Analyzing trace with hash 278752904, now seen corresponding path program 1 times
[2025-03-08 08:35:56,529 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-08 08:35:56,529 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277313540]
[2025-03-08 08:35:56,529 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-08 08:35:56,529 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-08 08:35:56,605 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 432 statements into 1 equivalence classes.
[2025-03-08 08:35:56,676 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 432 of 432 statements.
[2025-03-08 08:35:56,677 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-08 08:35:56,677 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-08 08:35:57,294 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-08 08:35:57,295 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-08 08:35:57,295 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277313540]
[2025-03-08 08:35:57,295 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277313540] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-08 08:35:57,295 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-08 08:35:57,295 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-08 08:35:57,296 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88320226]
[2025-03-08 08:35:57,296 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-08 08:35:57,297 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-08 08:35:57,297 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-08 08:35:57,297 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-08 08:35:57,297 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-08 08:35:57,298 INFO  L87              Difference]: Start difference. First operand 6491 states and 9767 transitions. Second operand  has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 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)
[2025-03-08 08:35:59,688 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-08 08:35:59,688 INFO  L93              Difference]: Finished difference Result 12774 states and 19223 transitions.
[2025-03-08 08:35:59,688 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-08 08:35:59,689 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 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 432
[2025-03-08 08:35:59,689 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-08 08:35:59,708 INFO  L225             Difference]: With dead ends: 12774
[2025-03-08 08:35:59,708 INFO  L226             Difference]: Without dead ends: 6493
[2025-03-08 08:35:59,715 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
[2025-03-08 08:35:59,716 INFO  L435           NwaCegarLoop]: 8125 mSDtfsCounter, 0 mSDsluCounter, 16242 mSDsCounter, 0 mSdLazyCounter, 4927 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24367 SdHoareTripleChecker+Invalid, 4927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time
[2025-03-08 08:35:59,716 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24367 Invalid, 4927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4927 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time]
[2025-03-08 08:35:59,724 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6493 states.
[2025-03-08 08:35:59,793 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6493 to 6493.
[2025-03-08 08:35:59,805 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6493 states, 6492 states have (on average 1.5047751078250153) internal successors, (9769), 6492 states have internal predecessors, (9769), 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)
[2025-03-08 08:35:59,816 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6493 states to 6493 states and 9769 transitions.
[2025-03-08 08:35:59,817 INFO  L78                 Accepts]: Start accepts. Automaton has 6493 states and 9769 transitions. Word has length 432
[2025-03-08 08:35:59,817 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-08 08:35:59,817 INFO  L471      AbstractCegarLoop]: Abstraction has 6493 states and 9769 transitions.
[2025-03-08 08:35:59,822 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 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)
[2025-03-08 08:35:59,822 INFO  L276                IsEmpty]: Start isEmpty. Operand 6493 states and 9769 transitions.
[2025-03-08 08:35:59,826 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 434
[2025-03-08 08:35:59,829 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-08 08:35:59,830 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]
[2025-03-08 08:35:59,830 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-03-08 08:35:59,830 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-08 08:35:59,831 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-08 08:35:59,831 INFO  L85        PathProgramCache]: Analyzing trace with hash 1982924557, now seen corresponding path program 1 times
[2025-03-08 08:35:59,831 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-08 08:35:59,831 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858522344]
[2025-03-08 08:35:59,831 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-08 08:35:59,831 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-08 08:35:59,912 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 433 statements into 1 equivalence classes.
[2025-03-08 08:35:59,966 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 433 of 433 statements.
[2025-03-08 08:35:59,966 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-08 08:35:59,966 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-08 08:36:00,891 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-08 08:36:00,892 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-08 08:36:00,892 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858522344]
[2025-03-08 08:36:00,892 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858522344] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-08 08:36:00,893 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-08 08:36:00,893 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-03-08 08:36:00,893 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134798094]
[2025-03-08 08:36:00,893 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-08 08:36:00,894 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-03-08 08:36:00,894 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-08 08:36:00,895 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-03-08 08:36:00,896 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2025-03-08 08:36:00,897 INFO  L87              Difference]: Start difference. First operand 6493 states and 9769 transitions. Second operand  has 5 states, 5 states have (on average 86.6) internal successors, (433), 5 states have internal predecessors, (433), 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)
[2025-03-08 08:36:04,526 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-08 08:36:04,526 INFO  L93              Difference]: Finished difference Result 18936 states and 28495 transitions.
[2025-03-08 08:36:04,527 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2025-03-08 08:36:04,527 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 86.6) internal successors, (433), 5 states have internal predecessors, (433), 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 433
[2025-03-08 08:36:04,528 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-08 08:36:04,565 INFO  L225             Difference]: With dead ends: 18936
[2025-03-08 08:36:04,566 INFO  L226             Difference]: Without dead ends: 12653
[2025-03-08 08:36:04,578 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2025-03-08 08:36:04,579 INFO  L435           NwaCegarLoop]: 8123 mSDtfsCounter, 9159 mSDsluCounter, 24103 mSDsCounter, 0 mSdLazyCounter, 6521 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9159 SdHoareTripleChecker+Valid, 32226 SdHoareTripleChecker+Invalid, 6521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time
[2025-03-08 08:36:04,579 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [9159 Valid, 32226 Invalid, 6521 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 6521 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time]
[2025-03-08 08:36:04,596 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 12653 states.
[2025-03-08 08:36:04,718 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 12653 to 7131.
[2025-03-08 08:36:04,728 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7131 states, 7130 states have (on average 1.5042075736325387) internal successors, (10725), 7130 states have internal predecessors, (10725), 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)
[2025-03-08 08:36:04,741 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7131 states to 7131 states and 10725 transitions.
[2025-03-08 08:36:04,742 INFO  L78                 Accepts]: Start accepts. Automaton has 7131 states and 10725 transitions. Word has length 433
[2025-03-08 08:36:04,742 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-08 08:36:04,742 INFO  L471      AbstractCegarLoop]: Abstraction has 7131 states and 10725 transitions.
[2025-03-08 08:36:04,742 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 86.6) internal successors, (433), 5 states have internal predecessors, (433), 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)
[2025-03-08 08:36:04,743 INFO  L276                IsEmpty]: Start isEmpty. Operand 7131 states and 10725 transitions.
[2025-03-08 08:36:04,888 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3329
[2025-03-08 08:36:04,888 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-08 08:36:04,890 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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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-08 08:36:04,891 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-03-08 08:36:04,891 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-08 08:36:04,892 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-08 08:36:04,893 INFO  L85        PathProgramCache]: Analyzing trace with hash 1290782625, now seen corresponding path program 1 times
[2025-03-08 08:36:04,893 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-08 08:36:04,893 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842355601]
[2025-03-08 08:36:04,894 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-08 08:36:04,894 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-08 08:36:05,334 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3328 statements into 1 equivalence classes.
[2025-03-08 08:36:09,117 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3328 of 3328 statements.
[2025-03-08 08:36:09,118 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-08 08:36:09,118 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-08 08:36:14,322 INFO  L134       CoverageAnalysis]: Checked inductivity of 324 backedges. 324 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-08 08:36:14,323 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-08 08:36:14,323 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842355601]
[2025-03-08 08:36:14,323 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842355601] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-08 08:36:14,323 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-08 08:36:14,323 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2025-03-08 08:36:14,323 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021761931]
[2025-03-08 08:36:14,324 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-08 08:36:14,327 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2025-03-08 08:36:14,327 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-08 08:36:14,329 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2025-03-08 08:36:14,329 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-03-08 08:36:14,330 INFO  L87              Difference]: Start difference. First operand 7131 states and 10725 transitions. Second operand  has 3 states, 3 states have (on average 1109.3333333333333) internal successors, (3328), 3 states have internal predecessors, (3328), 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)
[2025-03-08 08:36:16,201 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-08 08:36:16,202 INFO  L93              Difference]: Finished difference Result 13415 states and 20182 transitions.
[2025-03-08 08:36:16,202 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2025-03-08 08:36:16,203 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 1109.3333333333333) internal successors, (3328), 3 states have internal predecessors, (3328), 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 3328
[2025-03-08 08:36:16,204 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-08 08:36:16,212 INFO  L225             Difference]: With dead ends: 13415
[2025-03-08 08:36:16,213 INFO  L226             Difference]: Without dead ends: 7132
[2025-03-08 08:36:16,216 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
[2025-03-08 08:36:16,216 INFO  L435           NwaCegarLoop]: 8126 mSDtfsCounter, 0 mSDsluCounter, 8121 mSDsCounter, 0 mSdLazyCounter, 3282 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16247 SdHoareTripleChecker+Invalid, 3282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time
[2025-03-08 08:36:16,217 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16247 Invalid, 3282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3282 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time]
[2025-03-08 08:36:16,223 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7132 states.
[2025-03-08 08:36:16,291 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7132 to 7132.
[2025-03-08 08:36:16,300 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7132 states, 7131 states have (on average 1.5041368671995512) internal successors, (10726), 7131 states have internal predecessors, (10726), 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)
[2025-03-08 08:36:16,307 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7132 states to 7132 states and 10726 transitions.
[2025-03-08 08:36:16,307 INFO  L78                 Accepts]: Start accepts. Automaton has 7132 states and 10726 transitions. Word has length 3328
[2025-03-08 08:36:16,309 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-08 08:36:16,309 INFO  L471      AbstractCegarLoop]: Abstraction has 7132 states and 10726 transitions.
[2025-03-08 08:36:16,310 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 1109.3333333333333) internal successors, (3328), 3 states have internal predecessors, (3328), 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)
[2025-03-08 08:36:16,310 INFO  L276                IsEmpty]: Start isEmpty. Operand 7132 states and 10726 transitions.
[2025-03-08 08:36:16,371 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3329
[2025-03-08 08:36:16,371 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-08 08:36:16,374 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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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-08 08:36:16,374 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-03-08 08:36:16,374 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-08 08:36:16,376 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-08 08:36:16,377 INFO  L85        PathProgramCache]: Analyzing trace with hash 835202144, now seen corresponding path program 1 times
[2025-03-08 08:36:16,377 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-08 08:36:16,377 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151589743]
[2025-03-08 08:36:16,377 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-08 08:36:16,377 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-08 08:36:16,763 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3328 statements into 1 equivalence classes.
[2025-03-08 08:36:19,185 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3328 of 3328 statements.
[2025-03-08 08:36:19,186 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-08 08:36:19,186 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-08 08:36:23,602 INFO  L134       CoverageAnalysis]: Checked inductivity of 324 backedges. 324 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-03-08 08:36:23,602 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-08 08:36:23,602 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151589743]
[2025-03-08 08:36:23,602 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151589743] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-08 08:36:23,602 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-08 08:36:23,603 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2025-03-08 08:36:23,603 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070217637]
[2025-03-08 08:36:23,603 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-08 08:36:23,605 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2025-03-08 08:36:23,605 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-08 08:36:23,607 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2025-03-08 08:36:23,607 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-03-08 08:36:23,608 INFO  L87              Difference]: Start difference. First operand 7132 states and 10726 transitions. Second operand  has 3 states, 3 states have (on average 1109.3333333333333) internal successors, (3328), 3 states have internal predecessors, (3328), 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)
[2025-03-08 08:36:25,035 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-08 08:36:25,035 INFO  L93              Difference]: Finished difference Result 13417 states and 20184 transitions.
[2025-03-08 08:36:25,035 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2025-03-08 08:36:25,036 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 1109.3333333333333) internal successors, (3328), 3 states have internal predecessors, (3328), 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 3328
[2025-03-08 08:36:25,037 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-08 08:36:25,047 INFO  L225             Difference]: With dead ends: 13417
[2025-03-08 08:36:25,048 INFO  L226             Difference]: Without dead ends: 7133
[2025-03-08 08:36:25,053 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
[2025-03-08 08:36:25,055 INFO  L435           NwaCegarLoop]: 8126 mSDtfsCounter, 0 mSDsluCounter, 8121 mSDsCounter, 0 mSdLazyCounter, 3282 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16247 SdHoareTripleChecker+Invalid, 3282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time
[2025-03-08 08:36:25,056 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16247 Invalid, 3282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3282 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time]
[2025-03-08 08:36:25,067 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7133 states.
[2025-03-08 08:36:25,125 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7133 to 7133.
[2025-03-08 08:36:25,132 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7133 states, 7132 states have (on average 1.5040661805945037) internal successors, (10727), 7132 states have internal predecessors, (10727), 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)
[2025-03-08 08:36:25,139 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7133 states to 7133 states and 10727 transitions.
[2025-03-08 08:36:25,139 INFO  L78                 Accepts]: Start accepts. Automaton has 7133 states and 10727 transitions. Word has length 3328
[2025-03-08 08:36:25,140 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-08 08:36:25,141 INFO  L471      AbstractCegarLoop]: Abstraction has 7133 states and 10727 transitions.
[2025-03-08 08:36:25,141 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 1109.3333333333333) internal successors, (3328), 3 states have internal predecessors, (3328), 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)
[2025-03-08 08:36:25,142 INFO  L276                IsEmpty]: Start isEmpty. Operand 7133 states and 10727 transitions.
[2025-03-08 08:36:25,189 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3329
[2025-03-08 08:36:25,190 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-08 08:36:25,191 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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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-08 08:36:25,191 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2025-03-08 08:36:25,192 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-08 08:36:25,193 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-08 08:36:25,194 INFO  L85        PathProgramCache]: Analyzing trace with hash 342141535, now seen corresponding path program 1 times
[2025-03-08 08:36:25,194 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-08 08:36:25,194 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315055452]
[2025-03-08 08:36:25,194 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-08 08:36:25,194 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-08 08:36:25,520 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3328 statements into 1 equivalence classes.
[2025-03-08 08:36:28,126 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3328 of 3328 statements.
[2025-03-08 08:36:28,127 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-08 08:36:28,127 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat