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


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


Checking for ERROR reachability
Using default analysis
Version 803cd42f
Calling Ultimate with: /root/.sdkman/candidates/java/current/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_1.5.800.v20200727-1323.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.rether.2.prop1-func-interl.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 2246b22224e7d45f76a4712ded88256a5e87d92c66ef345f72a41167604dbb61
--- Real Ultimate output ---
This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m
[2024-11-22 05:49:57,558 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-22 05:49:57,630 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf
[2024-11-22 05:49:57,639 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-22 05:49:57,640 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-22 05:49:57,671 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-22 05:49:57,673 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-22 05:49:57,673 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-22 05:49:57,674 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-22 05:49:57,675 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-22 05:49:57,675 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-22 05:49:57,676 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-22 05:49:57,676 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-22 05:49:57,677 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-22 05:49:57,677 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-22 05:49:57,677 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-22 05:49:57,678 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-22 05:49:57,678 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-22 05:49:57,678 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-22 05:49:57,679 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-22 05:49:57,679 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-22 05:49:57,684 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-22 05:49:57,684 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-22 05:49:57,687 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-22 05:49:57,687 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-22 05:49:57,688 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-22 05:49:57,688 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-22 05:49:57,688 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-22 05:49:57,689 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-22 05:49:57,689 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-22 05:49:57,689 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-22 05:49:57,690 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-22 05:49:57,690 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-22 05:49:57,691 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-22 05:49:57,691 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-22 05:49:57,691 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-22 05:49:57,692 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-22 05:49:57,692 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-22 05:49:57,692 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-22 05:49:57,692 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: 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 -> 2246b22224e7d45f76a4712ded88256a5e87d92c66ef345f72a41167604dbb61
[2024-11-22 05:49:57,921 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-22 05:49:57,945 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-22 05:49:57,948 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-22 05:49:57,950 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-22 05:49:57,950 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-22 05:49:57,951 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.rether.2.prop1-func-interl.c
[2024-11-22 05:49:59,480 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-22 05:49:59,862 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-22 05:49:59,863 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.rether.2.prop1-func-interl.c
[2024-11-22 05:49:59,896 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75ee84272/050be89b97954e2192c35bfd89355511/FLAGde09f6b35
[2024-11-22 05:49:59,912 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75ee84272/050be89b97954e2192c35bfd89355511
[2024-11-22 05:49:59,916 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-22 05:49:59,917 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-22 05:49:59,919 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-22 05:49:59,919 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-22 05:49:59,925 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-22 05:49:59,926 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 05:49:59" (1/1) ...
[2024-11-22 05:49:59,928 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73a06273 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:49:59, skipping insertion in model container
[2024-11-22 05:49:59,929 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 05:49:59" (1/1) ...
[2024-11-22 05:50:00,063 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-22 05:50:00,325 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.rether.2.prop1-func-interl.c[1173,1186]
[2024-11-22 05:50:00,856 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-22 05:50:00,864 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-22 05:50:00,874 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.rether.2.prop1-func-interl.c[1173,1186]
[2024-11-22 05:50:01,271 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-22 05:50:01,292 INFO  L204         MainTranslator]: Completed translation
[2024-11-22 05:50:01,292 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:50:01 WrapperNode
[2024-11-22 05:50:01,293 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-22 05:50:01,294 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-22 05:50:01,294 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-22 05:50:01,294 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-22 05:50:01,300 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:50:01" (1/1) ...
[2024-11-22 05:50:01,431 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:50:01" (1/1) ...
[2024-11-22 05:50:03,170 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 14672
[2024-11-22 05:50:03,170 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-22 05:50:03,171 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-22 05:50:03,171 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-22 05:50:03,171 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-22 05:50:03,188 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:50:01" (1/1) ...
[2024-11-22 05:50:03,192 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:50:01" (1/1) ...
[2024-11-22 05:50:04,012 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:50:01" (1/1) ...
[2024-11-22 05:50:04,327 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].
[2024-11-22 05:50:04,327 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:50:01" (1/1) ...
[2024-11-22 05:50:04,328 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:50:01" (1/1) ...
[2024-11-22 05:50:05,165 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:50:01" (1/1) ...
[2024-11-22 05:50:05,293 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:50:01" (1/1) ...
[2024-11-22 05:50:05,460 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:50:01" (1/1) ...
[2024-11-22 05:50:05,575 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:50:01" (1/1) ...
[2024-11-22 05:50:06,386 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-22 05:50:06,388 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-22 05:50:06,388 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-22 05:50:06,389 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-22 05:50:06,389 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:50:01" (1/1) ...
[2024-11-22 05:50:06,413 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-22 05:50:06,444 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-22 05:50:06,498 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)
[2024-11-22 05:50:06,508 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
[2024-11-22 05:50:06,590 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-22 05:50:06,590 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-22 05:50:06,591 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-22 05:50:06,591 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-22 05:50:07,290 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-22 05:50:07,292 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-22 05:50:30,631 INFO  L?                        ?]: Removed 8271 outVars from TransFormulas that were not future-live.
[2024-11-22 05:50:30,631 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-22 05:50:30,708 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-22 05:50:30,708 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-22 05:50:30,708 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:50:30 BoogieIcfgContainer
[2024-11-22 05:50:30,709 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-22 05:50:30,712 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-22 05:50:30,713 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-22 05:50:30,716 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-22 05:50:30,717 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 05:49:59" (1/3) ...
[2024-11-22 05:50:30,717 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@661cbe1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 05:50:30, skipping insertion in model container
[2024-11-22 05:50:30,718 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:50:01" (2/3) ...
[2024-11-22 05:50:30,719 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@661cbe1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 05:50:30, skipping insertion in model container
[2024-11-22 05:50:30,719 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:50:30" (3/3) ...
[2024-11-22 05:50:30,720 INFO  L112   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.rether.2.prop1-func-interl.c
[2024-11-22 05:50:30,738 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-22 05:50:30,739 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-22 05:50:30,875 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-22 05:50:30,882 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;@7c286a57, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-22 05:50:30,883 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-22 05:50:30,901 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 5210 states, 5208 states have (on average 1.5001920122887864) internal successors, (7813), 5209 states have internal predecessors, (7813), 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)
[2024-11-22 05:50:30,918 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 218
[2024-11-22 05:50:30,919 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 05:50:30,919 INFO  L215           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]
[2024-11-22 05:50:30,920 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 05:50:30,923 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 05:50:30,924 INFO  L85        PathProgramCache]: Analyzing trace with hash 277702921, now seen corresponding path program 1 times
[2024-11-22 05:50:30,932 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 05:50:30,933 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075549758]
[2024-11-22 05:50:30,933 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 05:50:30,933 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 05:50:31,281 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 05:50:32,137 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 05:50:32,138 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 05:50:32,139 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075549758]
[2024-11-22 05:50:32,140 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075549758] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 05:50:32,140 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 05:50:32,140 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-22 05:50:32,142 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848941521]
[2024-11-22 05:50:32,143 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 05:50:32,148 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-22 05:50:32,149 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 05:50:32,176 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-22 05:50:32,177 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-22 05:50:32,192 INFO  L87              Difference]: Start difference. First operand  has 5210 states, 5208 states have (on average 1.5001920122887864) internal successors, (7813), 5209 states have internal predecessors, (7813), 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 54.25) internal successors, (217), 4 states have internal predecessors, (217), 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)
[2024-11-22 05:50:32,467 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 05:50:32,468 INFO  L93              Difference]: Finished difference Result 10161 states and 15241 transitions.
[2024-11-22 05:50:32,469 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-22 05:50:32,471 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 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 217
[2024-11-22 05:50:32,473 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 05:50:32,508 INFO  L225             Difference]: With dead ends: 10161
[2024-11-22 05:50:32,509 INFO  L226             Difference]: Without dead ends: 5209
[2024-11-22 05:50:32,522 INFO  L431           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
[2024-11-22 05:50:32,525 INFO  L432           NwaCegarLoop]: 7807 mSDtfsCounter, 0 mSDsluCounter, 15608 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23415 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-22 05:50:32,526 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23415 Invalid, 11 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-22 05:50:32,553 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5209 states.
[2024-11-22 05:50:32,671 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5209 to 5209.
[2024-11-22 05:50:32,681 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5209 states, 5208 states have (on average 1.4998079877112136) internal successors, (7811), 5208 states have internal predecessors, (7811), 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)
[2024-11-22 05:50:32,697 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5209 states to 5209 states and 7811 transitions.
[2024-11-22 05:50:32,699 INFO  L78                 Accepts]: Start accepts. Automaton has 5209 states and 7811 transitions. Word has length 217
[2024-11-22 05:50:32,702 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 05:50:32,702 INFO  L471      AbstractCegarLoop]: Abstraction has 5209 states and 7811 transitions.
[2024-11-22 05:50:32,703 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 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)
[2024-11-22 05:50:32,703 INFO  L276                IsEmpty]: Start isEmpty. Operand 5209 states and 7811 transitions.
[2024-11-22 05:50:32,709 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 219
[2024-11-22 05:50:32,711 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 05:50:32,711 INFO  L215           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]
[2024-11-22 05:50:32,711 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-22 05:50:32,711 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 05:50:32,712 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 05:50:32,712 INFO  L85        PathProgramCache]: Analyzing trace with hash 20552490, now seen corresponding path program 1 times
[2024-11-22 05:50:32,712 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 05:50:32,713 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221747685]
[2024-11-22 05:50:32,715 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 05:50:32,715 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 05:50:32,845 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 05:50:33,242 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 05:50:33,245 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 05:50:33,245 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221747685]
[2024-11-22 05:50:33,245 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221747685] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 05:50:33,245 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 05:50:33,246 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-22 05:50:33,246 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433539457]
[2024-11-22 05:50:33,246 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 05:50:33,247 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-22 05:50:33,250 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 05:50:33,250 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-22 05:50:33,251 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-22 05:50:33,251 INFO  L87              Difference]: Start difference. First operand 5209 states and 7811 transitions. Second operand  has 4 states, 4 states have (on average 54.5) internal successors, (218), 4 states have internal predecessors, (218), 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)
[2024-11-22 05:50:33,434 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 05:50:33,435 INFO  L93              Difference]: Finished difference Result 10162 states and 15239 transitions.
[2024-11-22 05:50:33,435 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-22 05:50:33,435 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 54.5) internal successors, (218), 4 states have internal predecessors, (218), 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 218
[2024-11-22 05:50:33,436 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 05:50:33,457 INFO  L225             Difference]: With dead ends: 10162
[2024-11-22 05:50:33,458 INFO  L226             Difference]: Without dead ends: 5211
[2024-11-22 05:50:33,470 INFO  L431           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
[2024-11-22 05:50:33,471 INFO  L432           NwaCegarLoop]: 7807 mSDtfsCounter, 0 mSDsluCounter, 15604 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23411 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-22 05:50:33,474 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23411 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-22 05:50:33,602 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5211 states.
[2024-11-22 05:50:33,692 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5211 to 5211.
[2024-11-22 05:50:33,703 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5211 states, 5210 states have (on average 1.499616122840691) internal successors, (7813), 5210 states have internal predecessors, (7813), 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)
[2024-11-22 05:50:33,724 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5211 states to 5211 states and 7813 transitions.
[2024-11-22 05:50:33,725 INFO  L78                 Accepts]: Start accepts. Automaton has 5211 states and 7813 transitions. Word has length 218
[2024-11-22 05:50:33,727 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 05:50:33,727 INFO  L471      AbstractCegarLoop]: Abstraction has 5211 states and 7813 transitions.
[2024-11-22 05:50:33,727 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 54.5) internal successors, (218), 4 states have internal predecessors, (218), 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)
[2024-11-22 05:50:33,728 INFO  L276                IsEmpty]: Start isEmpty. Operand 5211 states and 7813 transitions.
[2024-11-22 05:50:33,730 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 220
[2024-11-22 05:50:33,731 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 05:50:33,731 INFO  L215           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]
[2024-11-22 05:50:33,731 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-22 05:50:33,731 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 05:50:33,732 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 05:50:33,732 INFO  L85        PathProgramCache]: Analyzing trace with hash -460837374, now seen corresponding path program 1 times
[2024-11-22 05:50:33,733 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 05:50:33,733 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935159755]
[2024-11-22 05:50:33,733 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 05:50:33,733 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 05:50:33,871 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 05:50:34,373 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 05:50:34,374 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 05:50:34,374 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935159755]
[2024-11-22 05:50:34,374 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935159755] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 05:50:34,374 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 05:50:34,375 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-22 05:50:34,375 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602969306]
[2024-11-22 05:50:34,375 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 05:50:34,376 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-22 05:50:34,376 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 05:50:34,377 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-22 05:50:34,380 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-22 05:50:34,380 INFO  L87              Difference]: Start difference. First operand 5211 states and 7813 transitions. Second operand  has 5 states, 5 states have (on average 43.8) internal successors, (219), 5 states have internal predecessors, (219), 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)
[2024-11-22 05:50:34,746 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 05:50:34,747 INFO  L93              Difference]: Finished difference Result 14123 states and 21178 transitions.
[2024-11-22 05:50:34,748 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-22 05:50:34,748 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 43.8) internal successors, (219), 5 states have internal predecessors, (219), 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 219
[2024-11-22 05:50:34,749 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 05:50:34,782 INFO  L225             Difference]: With dead ends: 14123
[2024-11-22 05:50:34,782 INFO  L226             Difference]: Without dead ends: 9170
[2024-11-22 05:50:34,793 INFO  L431           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
[2024-11-22 05:50:34,796 INFO  L432           NwaCegarLoop]: 7803 mSDtfsCounter, 6118 mSDsluCounter, 23018 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6118 SdHoareTripleChecker+Valid, 30821 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-22 05:50:34,797 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [6118 Valid, 30821 Invalid, 30 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-22 05:50:34,813 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9170 states.
[2024-11-22 05:50:34,950 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9170 to 5373.
[2024-11-22 05:50:34,968 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5373 states, 5372 states have (on average 1.4994415487714072) internal successors, (8055), 5372 states have internal predecessors, (8055), 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)
[2024-11-22 05:50:34,990 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5373 states to 5373 states and 8055 transitions.
[2024-11-22 05:50:34,990 INFO  L78                 Accepts]: Start accepts. Automaton has 5373 states and 8055 transitions. Word has length 219
[2024-11-22 05:50:34,991 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 05:50:34,991 INFO  L471      AbstractCegarLoop]: Abstraction has 5373 states and 8055 transitions.
[2024-11-22 05:50:34,991 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 43.8) internal successors, (219), 5 states have internal predecessors, (219), 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)
[2024-11-22 05:50:34,992 INFO  L276                IsEmpty]: Start isEmpty. Operand 5373 states and 8055 transitions.
[2024-11-22 05:50:35,201 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2691
[2024-11-22 05:50:35,202 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 05:50:35,206 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 05:50:35,207 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-22 05:50:35,208 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 05:50:35,208 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 05:50:35,211 INFO  L85        PathProgramCache]: Analyzing trace with hash 622653831, now seen corresponding path program 1 times
[2024-11-22 05:50:35,212 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 05:50:35,212 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582553944]
[2024-11-22 05:50:35,213 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 05:50:35,213 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 05:50:38,924 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 05:50:43,160 INFO  L134       CoverageAnalysis]: Checked inductivity of 86 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 05:50:43,160 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 05:50:43,160 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582553944]
[2024-11-22 05:50:43,161 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582553944] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 05:50:43,161 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 05:50:43,161 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-22 05:50:43,161 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968716842]
[2024-11-22 05:50:43,161 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 05:50:43,164 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-22 05:50:43,164 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 05:50:43,167 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-22 05:50:43,167 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-22 05:50:43,172 INFO  L87              Difference]: Start difference. First operand 5373 states and 8055 transitions. Second operand  has 4 states, 4 states have (on average 672.5) internal successors, (2690), 4 states have internal predecessors, (2690), 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)
[2024-11-22 05:50:43,340 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 05:50:43,341 INFO  L93              Difference]: Finished difference Result 10326 states and 15482 transitions.
[2024-11-22 05:50:43,342 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-22 05:50:43,344 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 672.5) internal successors, (2690), 4 states have internal predecessors, (2690), 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 2690
[2024-11-22 05:50:43,345 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 05:50:43,372 INFO  L225             Difference]: With dead ends: 10326
[2024-11-22 05:50:43,373 INFO  L226             Difference]: Without dead ends: 5373
[2024-11-22 05:50:43,382 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-22 05:50:43,383 INFO  L432           NwaCegarLoop]: 7800 mSDtfsCounter, 7437 mSDsluCounter, 7798 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7437 SdHoareTripleChecker+Valid, 15598 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-22 05:50:43,385 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [7437 Valid, 15598 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-22 05:50:43,394 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5373 states.
[2024-11-22 05:50:43,470 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5373 to 5373.
[2024-11-22 05:50:43,479 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5373 states, 5372 states have (on average 1.4992553983618764) internal successors, (8054), 5372 states have internal predecessors, (8054), 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)
[2024-11-22 05:50:43,498 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5373 states to 5373 states and 8054 transitions.
[2024-11-22 05:50:43,499 INFO  L78                 Accepts]: Start accepts. Automaton has 5373 states and 8054 transitions. Word has length 2690
[2024-11-22 05:50:43,500 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 05:50:43,500 INFO  L471      AbstractCegarLoop]: Abstraction has 5373 states and 8054 transitions.
[2024-11-22 05:50:43,501 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 672.5) internal successors, (2690), 4 states have internal predecessors, (2690), 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)
[2024-11-22 05:50:43,501 INFO  L276                IsEmpty]: Start isEmpty. Operand 5373 states and 8054 transitions.
[2024-11-22 05:50:43,616 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2692
[2024-11-22 05:50:43,616 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 05:50:43,618 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 05:50:43,618 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-22 05:50:43,618 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 05:50:43,619 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 05:50:43,620 INFO  L85        PathProgramCache]: Analyzing trace with hash 360860016, now seen corresponding path program 1 times
[2024-11-22 05:50:43,620 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 05:50:43,620 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034483945]
[2024-11-22 05:50:43,621 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 05:50:43,621 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 05:50:46,020 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 05:50:50,543 INFO  L134       CoverageAnalysis]: Checked inductivity of 86 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 05:50:50,543 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 05:50:50,543 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034483945]
[2024-11-22 05:50:50,545 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034483945] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 05:50:50,545 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 05:50:50,546 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-22 05:50:50,546 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518361221]
[2024-11-22 05:50:50,546 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 05:50:50,549 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-22 05:50:50,549 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 05:50:50,553 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-22 05:50:50,554 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-22 05:50:50,555 INFO  L87              Difference]: Start difference. First operand 5373 states and 8054 transitions. Second operand  has 4 states, 4 states have (on average 672.75) internal successors, (2691), 4 states have internal predecessors, (2691), 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)
[2024-11-22 05:50:50,719 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 05:50:50,720 INFO  L93              Difference]: Finished difference Result 10326 states and 15480 transitions.
[2024-11-22 05:50:50,720 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-22 05:50:50,722 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 672.75) internal successors, (2691), 4 states have internal predecessors, (2691), 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 2691
[2024-11-22 05:50:50,722 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 05:50:50,747 INFO  L225             Difference]: With dead ends: 10326
[2024-11-22 05:50:50,748 INFO  L226             Difference]: Without dead ends: 5373
[2024-11-22 05:50:50,756 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-22 05:50:50,757 INFO  L432           NwaCegarLoop]: 7799 mSDtfsCounter, 7427 mSDsluCounter, 7797 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7427 SdHoareTripleChecker+Valid, 15596 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-22 05:50:50,757 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [7427 Valid, 15596 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-22 05:50:50,767 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5373 states.
[2024-11-22 05:50:51,019 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5373 to 5373.
[2024-11-22 05:50:51,027 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5373 states, 5372 states have (on average 1.4990692479523455) internal successors, (8053), 5372 states have internal predecessors, (8053), 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)
[2024-11-22 05:50:51,036 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5373 states to 5373 states and 8053 transitions.
[2024-11-22 05:50:51,037 INFO  L78                 Accepts]: Start accepts. Automaton has 5373 states and 8053 transitions. Word has length 2691
[2024-11-22 05:50:51,038 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 05:50:51,038 INFO  L471      AbstractCegarLoop]: Abstraction has 5373 states and 8053 transitions.
[2024-11-22 05:50:51,039 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 672.75) internal successors, (2691), 4 states have internal predecessors, (2691), 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)
[2024-11-22 05:50:51,040 INFO  L276                IsEmpty]: Start isEmpty. Operand 5373 states and 8053 transitions.
[2024-11-22 05:50:51,083 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2693
[2024-11-22 05:50:51,083 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 05:50:51,085 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 05:50:51,086 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-22 05:50:51,086 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 05:50:51,086 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 05:50:51,088 INFO  L85        PathProgramCache]: Analyzing trace with hash 723307912, now seen corresponding path program 1 times
[2024-11-22 05:50:51,088 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 05:50:51,088 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487536285]
[2024-11-22 05:50:51,089 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 05:50:51,089 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 05:50:52,893 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 05:50:57,526 INFO  L134       CoverageAnalysis]: Checked inductivity of 86 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked.
[2024-11-22 05:50:57,527 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 05:50:57,527 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487536285]
[2024-11-22 05:50:57,527 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487536285] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 05:50:57,527 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 05:50:57,527 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-22 05:50:57,527 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622556036]
[2024-11-22 05:50:57,527 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 05:50:57,530 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-22 05:50:57,530 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 05:50:57,533 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-22 05:50:57,533 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-22 05:50:57,534 INFO  L87              Difference]: Start difference. First operand 5373 states and 8053 transitions. Second operand  has 5 states, 5 states have (on average 522.6) internal successors, (2613), 5 states have internal predecessors, (2613), 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)
[2024-11-22 05:50:57,670 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 05:50:57,670 INFO  L93              Difference]: Finished difference Result 10330 states and 15483 transitions.
[2024-11-22 05:50:57,672 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-22 05:50:57,673 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 522.6) internal successors, (2613), 5 states have internal predecessors, (2613), 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 2692
[2024-11-22 05:50:57,680 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 05:50:57,701 INFO  L225             Difference]: With dead ends: 10330
[2024-11-22 05:50:57,703 INFO  L226             Difference]: Without dead ends: 5377
[2024-11-22 05:50:57,713 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-22 05:50:57,715 INFO  L432           NwaCegarLoop]: 7805 mSDtfsCounter, 0 mSDsluCounter, 15594 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23399 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-22 05:50:57,716 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23399 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-22 05:50:57,725 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5377 states.
[2024-11-22 05:50:57,800 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5377 to 5373.
[2024-11-22 05:50:57,808 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5373 states, 5372 states have (on average 1.4990692479523455) internal successors, (8053), 5372 states have internal predecessors, (8053), 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)
[2024-11-22 05:50:57,815 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5373 states to 5373 states and 8053 transitions.
[2024-11-22 05:50:57,815 INFO  L78                 Accepts]: Start accepts. Automaton has 5373 states and 8053 transitions. Word has length 2692
[2024-11-22 05:50:57,819 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 05:50:57,819 INFO  L471      AbstractCegarLoop]: Abstraction has 5373 states and 8053 transitions.
[2024-11-22 05:50:57,823 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 522.6) internal successors, (2613), 5 states have internal predecessors, (2613), 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)
[2024-11-22 05:50:57,823 INFO  L276                IsEmpty]: Start isEmpty. Operand 5373 states and 8053 transitions.
[2024-11-22 05:50:57,868 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2694
[2024-11-22 05:50:57,868 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 05:50:57,870 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2024-11-22 05:50:57,870 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-22 05:50:57,870 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 05:50:57,871 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 05:50:57,872 INFO  L85        PathProgramCache]: Analyzing trace with hash 1856596971, now seen corresponding path program 1 times
[2024-11-22 05:50:57,872 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 05:50:57,872 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86582322]
[2024-11-22 05:50:57,873 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 05:50:57,873 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 05:51:00,405 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 05:51:05,581 INFO  L134       CoverageAnalysis]: Checked inductivity of 86 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 05:51:05,581 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 05:51:05,581 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86582322]
[2024-11-22 05:51:05,581 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86582322] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 05:51:05,582 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 05:51:05,582 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-22 05:51:05,582 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399797811]
[2024-11-22 05:51:05,585 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 05:51:05,587 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-22 05:51:05,588 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 05:51:05,590 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-22 05:51:05,590 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-11-22 05:51:05,591 INFO  L87              Difference]: Start difference. First operand 5373 states and 8053 transitions. Second operand  has 6 states, 6 states have (on average 448.8333333333333) internal successors, (2693), 6 states have internal predecessors, (2693), 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)