./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem17_label58.c --full-output --architecture 32bit


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


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/eca-rers2012/Problem17_label58.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-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 32bit --witnessprinter.graph.data.programhash 80e930446c3b5aed0357903e7f6687fdab832b55b1199711672275ec34cd4ed8
--- Real Ultimate output ---
This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m
[2024-11-21 22:35:07,548 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-21 22:35:07,630 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-21 22:35:07,636 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-21 22:35:07,637 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-21 22:35:07,668 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-21 22:35:07,669 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-21 22:35:07,669 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-21 22:35:07,670 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-21 22:35:07,671 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-21 22:35:07,672 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-21 22:35:07,672 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-21 22:35:07,673 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-21 22:35:07,674 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-21 22:35:07,676 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-21 22:35:07,676 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-21 22:35:07,676 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-21 22:35:07,677 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-21 22:35:07,677 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-21 22:35:07,677 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-21 22:35:07,677 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-21 22:35:07,679 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-21 22:35:07,682 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-21 22:35:07,682 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-21 22:35:07,682 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-21 22:35:07,683 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-21 22:35:07,683 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-21 22:35:07,683 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-21 22:35:07,684 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-21 22:35:07,684 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-21 22:35:07,685 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-21 22:35:07,685 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-21 22:35:07,685 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-21 22:35:07,685 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-21 22:35:07,686 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-21 22:35:07,686 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-21 22:35:07,686 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-21 22:35:07,687 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-21 22:35:07,687 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-21 22:35:07,687 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-21 22:35:07,687 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-21 22:35:07,688 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-21 22:35:07,688 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 -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 80e930446c3b5aed0357903e7f6687fdab832b55b1199711672275ec34cd4ed8
[2024-11-21 22:35:07,959 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-21 22:35:07,981 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-21 22:35:07,984 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-21 22:35:07,985 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-21 22:35:07,985 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-21 22:35:07,986 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem17_label58.c
[2024-11-21 22:35:09,409 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-21 22:35:09,823 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-21 22:35:09,824 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem17_label58.c
[2024-11-21 22:35:09,855 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e806501a/49eb67fa1ce94e9c9cfeed0739bf6c3b/FLAG41807380f
[2024-11-21 22:35:09,992 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e806501a/49eb67fa1ce94e9c9cfeed0739bf6c3b
[2024-11-21 22:35:09,994 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-21 22:35:09,994 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-21 22:35:09,997 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-21 22:35:09,997 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-21 22:35:10,002 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-21 22:35:10,003 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:35:09" (1/1) ...
[2024-11-21 22:35:10,004 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@624267d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:35:10, skipping insertion in model container
[2024-11-21 22:35:10,004 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:35:09" (1/1) ...
[2024-11-21 22:35:10,086 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-21 22:35:10,349 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/eca-rers2012/Problem17_label58.c[6741,6754]
[2024-11-21 22:35:10,859 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-21 22:35:10,869 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-21 22:35:10,902 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/eca-rers2012/Problem17_label58.c[6741,6754]
[2024-11-21 22:35:11,146 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-21 22:35:11,167 INFO  L204         MainTranslator]: Completed translation
[2024-11-21 22:35:11,168 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:35:11 WrapperNode
[2024-11-21 22:35:11,168 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-21 22:35:11,169 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-21 22:35:11,169 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-21 22:35:11,169 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-21 22:35:11,176 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:35:11" (1/1) ...
[2024-11-21 22:35:11,223 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:35:11" (1/1) ...
[2024-11-21 22:35:11,571 INFO  L138                Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 2613
[2024-11-21 22:35:11,571 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-21 22:35:11,573 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-21 22:35:11,573 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-21 22:35:11,573 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-21 22:35:11,583 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:35:11" (1/1) ...
[2024-11-21 22:35:11,588 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:35:11" (1/1) ...
[2024-11-21 22:35:11,657 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:35:11" (1/1) ...
[2024-11-21 22:35:11,871 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].
[2024-11-21 22:35:11,872 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:35:11" (1/1) ...
[2024-11-21 22:35:11,872 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:35:11" (1/1) ...
[2024-11-21 22:35:11,983 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:35:11" (1/1) ...
[2024-11-21 22:35:12,012 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:35:11" (1/1) ...
[2024-11-21 22:35:12,057 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:35:11" (1/1) ...
[2024-11-21 22:35:12,072 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:35:11" (1/1) ...
[2024-11-21 22:35:12,126 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-21 22:35:12,128 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-21 22:35:12,128 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-21 22:35:12,129 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-21 22:35:12,130 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:35:11" (1/1) ...
[2024-11-21 22:35:12,135 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-21 22:35:12,149 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-21 22:35:12,166 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)
[2024-11-21 22:35:12,169 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
[2024-11-21 22:35:12,219 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-21 22:35:12,220 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-21 22:35:12,220 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-21 22:35:12,220 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-21 22:35:12,291 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-21 22:35:12,294 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-21 22:35:15,427 INFO  L?                        ?]: Removed 372 outVars from TransFormulas that were not future-live.
[2024-11-21 22:35:15,428 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-21 22:35:15,462 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-21 22:35:15,466 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-21 22:35:15,467 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:35:15 BoogieIcfgContainer
[2024-11-21 22:35:15,467 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-21 22:35:15,468 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-21 22:35:15,468 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-21 22:35:15,472 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-21 22:35:15,473 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:35:09" (1/3) ...
[2024-11-21 22:35:15,474 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ab3f990 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:35:15, skipping insertion in model container
[2024-11-21 22:35:15,474 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:35:11" (2/3) ...
[2024-11-21 22:35:15,475 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ab3f990 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:35:15, skipping insertion in model container
[2024-11-21 22:35:15,475 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:35:15" (3/3) ...
[2024-11-21 22:35:15,476 INFO  L112   eAbstractionObserver]: Analyzing ICFG Problem17_label58.c
[2024-11-21 22:35:15,492 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-21 22:35:15,492 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-21 22:35:15,580 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-21 22:35:15,587 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;@39ba7c6b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-21 22:35:15,588 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-21 22:35:15,595 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 590 states, 588 states have (on average 1.8061224489795917) internal successors, (1062), 589 states have internal predecessors, (1062), 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)
[2024-11-21 22:35:15,604 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 46
[2024-11-21 22:35:15,604 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-21 22:35:15,605 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]
[2024-11-21 22:35:15,606 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 22:35:15,611 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 22:35:15,611 INFO  L85        PathProgramCache]: Analyzing trace with hash -2068820151, now seen corresponding path program 1 times
[2024-11-21 22:35:15,620 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 22:35:15,621 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060938635]
[2024-11-21 22:35:15,621 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:35:15,621 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 22:35:15,753 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:35:15,972 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-21 22:35:15,973 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 22:35:15,973 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060938635]
[2024-11-21 22:35:15,974 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060938635] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-21 22:35:15,974 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-21 22:35:15,974 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-21 22:35:15,976 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007157605]
[2024-11-21 22:35:15,977 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-21 22:35:15,981 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-21 22:35:15,982 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 22:35:16,008 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-21 22:35:16,008 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-21 22:35:16,012 INFO  L87              Difference]: Start difference. First operand  has 590 states, 588 states have (on average 1.8061224489795917) internal successors, (1062), 589 states have internal predecessors, (1062), 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 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 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)
[2024-11-21 22:35:18,442 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 22:35:18,443 INFO  L93              Difference]: Finished difference Result 1667 states and 3061 transitions.
[2024-11-21 22:35:18,444 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-21 22:35:18,445 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 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 45
[2024-11-21 22:35:18,445 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 22:35:18,461 INFO  L225             Difference]: With dead ends: 1667
[2024-11-21 22:35:18,461 INFO  L226             Difference]: Without dead ends: 998
[2024-11-21 22:35:18,466 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-21 22:35:18,469 INFO  L432           NwaCegarLoop]: 214 mSDtfsCounter, 500 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 1566 mSolverCounterSat, 396 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 500 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 1962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 396 IncrementalHoareTripleChecker+Valid, 1566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time
[2024-11-21 22:35:18,469 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [500 Valid, 276 Invalid, 1962 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [396 Valid, 1566 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time]
[2024-11-21 22:35:18,485 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 998 states.
[2024-11-21 22:35:18,544 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 998 to 982.
[2024-11-21 22:35:18,546 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 982 states, 981 states have (on average 1.707441386340469) internal successors, (1675), 981 states have internal predecessors, (1675), 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)
[2024-11-21 22:35:18,550 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 982 states to 982 states and 1675 transitions.
[2024-11-21 22:35:18,551 INFO  L78                 Accepts]: Start accepts. Automaton has 982 states and 1675 transitions. Word has length 45
[2024-11-21 22:35:18,551 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-21 22:35:18,552 INFO  L471      AbstractCegarLoop]: Abstraction has 982 states and 1675 transitions.
[2024-11-21 22:35:18,552 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 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)
[2024-11-21 22:35:18,552 INFO  L276                IsEmpty]: Start isEmpty. Operand 982 states and 1675 transitions.
[2024-11-21 22:35:18,555 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 111
[2024-11-21 22:35:18,555 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-21 22:35:18,555 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-21 22:35:18,556 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-21 22:35:18,556 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 22:35:18,557 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 22:35:18,557 INFO  L85        PathProgramCache]: Analyzing trace with hash 1676282541, now seen corresponding path program 1 times
[2024-11-21 22:35:18,557 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 22:35:18,557 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140010005]
[2024-11-21 22:35:18,557 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:35:18,558 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 22:35:18,619 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:35:18,794 INFO  L134       CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-21 22:35:18,795 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 22:35:18,795 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140010005]
[2024-11-21 22:35:18,795 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140010005] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-21 22:35:18,796 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-21 22:35:18,796 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-21 22:35:18,796 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757682874]
[2024-11-21 22:35:18,797 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-21 22:35:18,799 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-21 22:35:18,799 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 22:35:18,800 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-21 22:35:18,800 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-21 22:35:18,800 INFO  L87              Difference]: Start difference. First operand 982 states and 1675 transitions. Second operand  has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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)
[2024-11-21 22:35:21,151 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 22:35:21,152 INFO  L93              Difference]: Finished difference Result 2843 states and 4882 transitions.
[2024-11-21 22:35:21,152 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-21 22:35:21,153 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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 110
[2024-11-21 22:35:21,153 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 22:35:21,160 INFO  L225             Difference]: With dead ends: 2843
[2024-11-21 22:35:21,160 INFO  L226             Difference]: Without dead ends: 1863
[2024-11-21 22:35:21,162 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-21 22:35:21,163 INFO  L432           NwaCegarLoop]: 422 mSDtfsCounter, 409 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 1341 mSolverCounterSat, 324 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 1665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 324 IncrementalHoareTripleChecker+Valid, 1341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time
[2024-11-21 22:35:21,164 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 495 Invalid, 1665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [324 Valid, 1341 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time]
[2024-11-21 22:35:21,167 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1863 states.
[2024-11-21 22:35:21,202 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1863 to 1857.
[2024-11-21 22:35:21,205 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1857 states, 1856 states have (on average 1.4552801724137931) internal successors, (2701), 1856 states have internal predecessors, (2701), 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)
[2024-11-21 22:35:21,210 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1857 states to 1857 states and 2701 transitions.
[2024-11-21 22:35:21,210 INFO  L78                 Accepts]: Start accepts. Automaton has 1857 states and 2701 transitions. Word has length 110
[2024-11-21 22:35:21,212 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-21 22:35:21,212 INFO  L471      AbstractCegarLoop]: Abstraction has 1857 states and 2701 transitions.
[2024-11-21 22:35:21,212 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 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)
[2024-11-21 22:35:21,213 INFO  L276                IsEmpty]: Start isEmpty. Operand 1857 states and 2701 transitions.
[2024-11-21 22:35:21,218 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 117
[2024-11-21 22:35:21,219 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-21 22:35:21,219 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-21 22:35:21,219 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-21 22:35:21,220 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 22:35:21,220 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 22:35:21,224 INFO  L85        PathProgramCache]: Analyzing trace with hash -690077156, now seen corresponding path program 1 times
[2024-11-21 22:35:21,224 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 22:35:21,225 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956756230]
[2024-11-21 22:35:21,225 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:35:21,225 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 22:35:21,264 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:35:21,372 INFO  L134       CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-21 22:35:21,373 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 22:35:21,373 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956756230]
[2024-11-21 22:35:21,373 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956756230] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-21 22:35:21,374 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-21 22:35:21,374 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-21 22:35:21,374 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923525959]
[2024-11-21 22:35:21,374 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-21 22:35:21,375 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-21 22:35:21,375 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 22:35:21,376 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-21 22:35:21,376 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-21 22:35:21,376 INFO  L87              Difference]: Start difference. First operand 1857 states and 2701 transitions. Second operand  has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 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)
[2024-11-21 22:35:23,054 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 22:35:23,054 INFO  L93              Difference]: Finished difference Result 5425 states and 7895 transitions.
[2024-11-21 22:35:23,055 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-21 22:35:23,055 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 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 116
[2024-11-21 22:35:23,055 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 22:35:23,067 INFO  L225             Difference]: With dead ends: 5425
[2024-11-21 22:35:23,067 INFO  L226             Difference]: Without dead ends: 3570
[2024-11-21 22:35:23,069 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-21 22:35:23,071 INFO  L432           NwaCegarLoop]: 516 mSDtfsCounter, 387 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 1081 mSolverCounterSat, 548 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 1629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 548 IncrementalHoareTripleChecker+Valid, 1081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time
[2024-11-21 22:35:23,072 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 591 Invalid, 1629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [548 Valid, 1081 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time]
[2024-11-21 22:35:23,077 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3570 states.
[2024-11-21 22:35:23,112 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3570 to 2714.
[2024-11-21 22:35:23,116 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2714 states, 2713 states have (on average 1.315886472539624) internal successors, (3570), 2713 states have internal predecessors, (3570), 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)
[2024-11-21 22:35:23,121 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2714 states to 2714 states and 3570 transitions.
[2024-11-21 22:35:23,121 INFO  L78                 Accepts]: Start accepts. Automaton has 2714 states and 3570 transitions. Word has length 116
[2024-11-21 22:35:23,122 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-21 22:35:23,122 INFO  L471      AbstractCegarLoop]: Abstraction has 2714 states and 3570 transitions.
[2024-11-21 22:35:23,122 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 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)
[2024-11-21 22:35:23,123 INFO  L276                IsEmpty]: Start isEmpty. Operand 2714 states and 3570 transitions.
[2024-11-21 22:35:23,124 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 194
[2024-11-21 22:35:23,125 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-21 22:35:23,125 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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]
[2024-11-21 22:35:23,125 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-21 22:35:23,125 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 22:35:23,126 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 22:35:23,126 INFO  L85        PathProgramCache]: Analyzing trace with hash 544079772, now seen corresponding path program 1 times
[2024-11-21 22:35:23,126 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 22:35:23,126 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308607104]
[2024-11-21 22:35:23,127 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:35:23,127 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 22:35:23,193 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:35:23,616 INFO  L134       CoverageAnalysis]: Checked inductivity of 149 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-21 22:35:23,618 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 22:35:23,618 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308607104]
[2024-11-21 22:35:23,619 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308607104] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-21 22:35:23,619 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-21 22:35:23,619 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-21 22:35:23,619 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835730883]
[2024-11-21 22:35:23,619 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-21 22:35:23,620 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-21 22:35:23,620 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 22:35:23,620 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-21 22:35:23,621 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-21 22:35:23,621 INFO  L87              Difference]: Start difference. First operand 2714 states and 3570 transitions. Second operand  has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 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)
[2024-11-21 22:35:25,893 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 22:35:25,893 INFO  L93              Difference]: Finished difference Result 7147 states and 9641 transitions.
[2024-11-21 22:35:25,893 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-21 22:35:25,894 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 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 193
[2024-11-21 22:35:25,894 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 22:35:25,908 INFO  L225             Difference]: With dead ends: 7147
[2024-11-21 22:35:25,908 INFO  L226             Difference]: Without dead ends: 4435
[2024-11-21 22:35:25,913 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
[2024-11-21 22:35:25,914 INFO  L432           NwaCegarLoop]: 765 mSDtfsCounter, 1651 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 1789 mSolverCounterSat, 956 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1651 SdHoareTripleChecker+Valid, 863 SdHoareTripleChecker+Invalid, 2745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 956 IncrementalHoareTripleChecker+Valid, 1789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time
[2024-11-21 22:35:25,914 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1651 Valid, 863 Invalid, 2745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [956 Valid, 1789 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time]
[2024-11-21 22:35:25,919 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4435 states.
[2024-11-21 22:35:25,973 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4435 to 4424.
[2024-11-21 22:35:25,980 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4424 states, 4423 states have (on average 1.2912050644359032) internal successors, (5711), 4423 states have internal predecessors, (5711), 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)
[2024-11-21 22:35:25,988 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4424 states to 4424 states and 5711 transitions.
[2024-11-21 22:35:25,989 INFO  L78                 Accepts]: Start accepts. Automaton has 4424 states and 5711 transitions. Word has length 193
[2024-11-21 22:35:25,990 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-21 22:35:25,990 INFO  L471      AbstractCegarLoop]: Abstraction has 4424 states and 5711 transitions.
[2024-11-21 22:35:25,990 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 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)
[2024-11-21 22:35:25,991 INFO  L276                IsEmpty]: Start isEmpty. Operand 4424 states and 5711 transitions.
[2024-11-21 22:35:25,993 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 200
[2024-11-21 22:35:25,993 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-21 22:35:25,993 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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]
[2024-11-21 22:35:25,993 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-21 22:35:25,993 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 22:35:25,994 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 22:35:25,995 INFO  L85        PathProgramCache]: Analyzing trace with hash -1198749749, now seen corresponding path program 1 times
[2024-11-21 22:35:25,995 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 22:35:25,995 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548727561]
[2024-11-21 22:35:25,995 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:35:25,995 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 22:35:26,052 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:35:26,292 INFO  L134       CoverageAnalysis]: Checked inductivity of 155 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked.
[2024-11-21 22:35:26,293 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 22:35:26,293 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548727561]
[2024-11-21 22:35:26,294 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548727561] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-21 22:35:26,294 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-21 22:35:26,294 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-21 22:35:26,294 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141428292]
[2024-11-21 22:35:26,294 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-21 22:35:26,295 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-21 22:35:26,295 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 22:35:26,295 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-21 22:35:26,296 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-21 22:35:26,296 INFO  L87              Difference]: Start difference. First operand 4424 states and 5711 transitions. Second operand  has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 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)
[2024-11-21 22:35:28,255 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 22:35:28,256 INFO  L93              Difference]: Finished difference Result 10593 states and 13804 transitions.
[2024-11-21 22:35:28,256 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-21 22:35:28,256 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 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 199
[2024-11-21 22:35:28,257 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 22:35:28,276 INFO  L225             Difference]: With dead ends: 10593
[2024-11-21 22:35:28,276 INFO  L226             Difference]: Without dead ends: 6171
[2024-11-21 22:35:28,283 INFO  L431           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
[2024-11-21 22:35:28,284 INFO  L432           NwaCegarLoop]: 191 mSDtfsCounter, 508 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 1459 mSolverCounterSat, 483 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 508 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 1942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 483 IncrementalHoareTripleChecker+Valid, 1459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time
[2024-11-21 22:35:28,284 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [508 Valid, 240 Invalid, 1942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [483 Valid, 1459 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time]
[2024-11-21 22:35:28,291 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6171 states.
[2024-11-21 22:35:28,371 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6171 to 6153.
[2024-11-21 22:35:28,378 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6153 states, 6152 states have (on average 1.303966189856957) internal successors, (8022), 6152 states have internal predecessors, (8022), 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)
[2024-11-21 22:35:28,391 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6153 states to 6153 states and 8022 transitions.
[2024-11-21 22:35:28,391 INFO  L78                 Accepts]: Start accepts. Automaton has 6153 states and 8022 transitions. Word has length 199
[2024-11-21 22:35:28,392 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-21 22:35:28,392 INFO  L471      AbstractCegarLoop]: Abstraction has 6153 states and 8022 transitions.
[2024-11-21 22:35:28,392 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 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)
[2024-11-21 22:35:28,392 INFO  L276                IsEmpty]: Start isEmpty. Operand 6153 states and 8022 transitions.
[2024-11-21 22:35:28,395 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 266
[2024-11-21 22:35:28,395 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-21 22:35:28,396 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2024-11-21 22:35:28,396 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-21 22:35:28,396 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 22:35:28,397 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 22:35:28,397 INFO  L85        PathProgramCache]: Analyzing trace with hash -654017339, now seen corresponding path program 1 times
[2024-11-21 22:35:28,397 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 22:35:28,397 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869392939]
[2024-11-21 22:35:28,397 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:35:28,397 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 22:35:28,517 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:35:28,991 INFO  L134       CoverageAnalysis]: Checked inductivity of 167 backedges. 85 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-21 22:35:28,992 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 22:35:28,992 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869392939]
[2024-11-21 22:35:28,992 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869392939] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-21 22:35:28,992 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [317458637]
[2024-11-21 22:35:28,992 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:35:28,993 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-21 22:35:28,994 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-21 22:35:28,995 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-21 22:35:28,998 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-21 22:35:29,121 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:35:29,124 INFO  L255         TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-21 22:35:29,134 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-21 22:35:29,487 INFO  L134       CoverageAnalysis]: Checked inductivity of 167 backedges. 85 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-21 22:35:29,488 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-21 22:35:29,877 INFO  L134       CoverageAnalysis]: Checked inductivity of 167 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-21 22:35:29,877 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [317458637] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-21 22:35:29,878 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences.
[2024-11-21 22:35:29,878 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 7
[2024-11-21 22:35:29,878 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592300862]
[2024-11-21 22:35:29,878 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-21 22:35:29,879 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-21 22:35:29,879 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 22:35:29,880 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-21 22:35:29,880 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2024-11-21 22:35:29,880 INFO  L87              Difference]: Start difference. First operand 6153 states and 8022 transitions. Second operand  has 4 states, 4 states have (on average 66.25) internal successors, (265), 3 states have internal predecessors, (265), 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)
[2024-11-21 22:35:32,671 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 22:35:32,671 INFO  L93              Difference]: Finished difference Result 19997 states and 26780 transitions.
[2024-11-21 22:35:32,675 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-21 22:35:32,676 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 66.25) internal successors, (265), 3 states have internal predecessors, (265), 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 265
[2024-11-21 22:35:32,676 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 22:35:32,715 INFO  L225             Difference]: With dead ends: 19997
[2024-11-21 22:35:32,716 INFO  L226             Difference]: Without dead ends: 12537
[2024-11-21 22:35:32,726 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 531 GetRequests, 525 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2024-11-21 22:35:32,728 INFO  L432           NwaCegarLoop]: 89 mSDtfsCounter, 847 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 2319 mSolverCounterSat, 823 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 847 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 3142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 823 IncrementalHoareTripleChecker+Valid, 2319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time
[2024-11-21 22:35:32,728 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [847 Valid, 168 Invalid, 3142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [823 Valid, 2319 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time]
[2024-11-21 22:35:32,743 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 12537 states.
[2024-11-21 22:35:32,898 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 12537 to 12531.
[2024-11-21 22:35:32,924 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 12531 states, 12530 states have (on average 1.2289704708699123) internal successors, (15399), 12530 states have internal predecessors, (15399), 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)
[2024-11-21 22:35:32,949 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 12531 states to 12531 states and 15399 transitions.
[2024-11-21 22:35:32,950 INFO  L78                 Accepts]: Start accepts. Automaton has 12531 states and 15399 transitions. Word has length 265
[2024-11-21 22:35:32,950 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-21 22:35:32,950 INFO  L471      AbstractCegarLoop]: Abstraction has 12531 states and 15399 transitions.
[2024-11-21 22:35:32,951 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 66.25) internal successors, (265), 3 states have internal predecessors, (265), 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)
[2024-11-21 22:35:32,951 INFO  L276                IsEmpty]: Start isEmpty. Operand 12531 states and 15399 transitions.
[2024-11-21 22:35:32,956 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 303
[2024-11-21 22:35:32,956 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-21 22:35:32,957 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2024-11-21 22:35:32,967 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2024-11-21 22:35:33,161 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5
[2024-11-21 22:35:33,161 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 22:35:33,162 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 22:35:33,162 INFO  L85        PathProgramCache]: Analyzing trace with hash -925800976, now seen corresponding path program 1 times
[2024-11-21 22:35:33,162 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 22:35:33,162 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117123460]
[2024-11-21 22:35:33,162 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:35:33,163 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 22:35:33,264 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:35:33,575 INFO  L134       CoverageAnalysis]: Checked inductivity of 167 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked.
[2024-11-21 22:35:33,575 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 22:35:33,576 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117123460]
[2024-11-21 22:35:33,576 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117123460] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-21 22:35:33,576 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-21 22:35:33,576 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-21 22:35:33,576 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665434857]
[2024-11-21 22:35:33,576 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-21 22:35:33,577 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-21 22:35:33,577 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 22:35:33,578 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-21 22:35:33,580 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-21 22:35:33,580 INFO  L87              Difference]: Start difference. First operand 12531 states and 15399 transitions. Second operand  has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 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)
[2024-11-21 22:35:35,241 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 22:35:35,241 INFO  L93              Difference]: Finished difference Result 30195 states and 36859 transitions.
[2024-11-21 22:35:35,241 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-21 22:35:35,241 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 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 302
[2024-11-21 22:35:35,242 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 22:35:35,268 INFO  L225             Difference]: With dead ends: 30195
[2024-11-21 22:35:35,269 INFO  L226             Difference]: Without dead ends: 16816
[2024-11-21 22:35:35,284 INFO  L431           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
[2024-11-21 22:35:35,285 INFO  L432           NwaCegarLoop]: 791 mSDtfsCounter, 413 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 1261 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 859 SdHoareTripleChecker+Invalid, 1409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 1261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time
[2024-11-21 22:35:35,285 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 859 Invalid, 1409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 1261 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time]
[2024-11-21 22:35:35,308 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 16816 states.
[2024-11-21 22:35:35,477 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 16816 to 16805.
[2024-11-21 22:35:35,505 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 16805 states, 16804 states have (on average 1.1906688883599144) internal successors, (20008), 16804 states have internal predecessors, (20008), 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)
[2024-11-21 22:35:35,657 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 16805 states to 16805 states and 20008 transitions.
[2024-11-21 22:35:35,661 INFO  L78                 Accepts]: Start accepts. Automaton has 16805 states and 20008 transitions. Word has length 302
[2024-11-21 22:35:35,662 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-21 22:35:35,662 INFO  L471      AbstractCegarLoop]: Abstraction has 16805 states and 20008 transitions.
[2024-11-21 22:35:35,663 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 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)
[2024-11-21 22:35:35,663 INFO  L276                IsEmpty]: Start isEmpty. Operand 16805 states and 20008 transitions.
[2024-11-21 22:35:35,670 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 349
[2024-11-21 22:35:35,670 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-21 22:35:35,671 INFO  L215           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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]
[2024-11-21 22:35:35,672 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-21 22:35:35,672 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 22:35:35,673 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 22:35:35,673 INFO  L85        PathProgramCache]: Analyzing trace with hash -1794999384, now seen corresponding path program 1 times
[2024-11-21 22:35:35,673 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 22:35:35,673 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575061012]
[2024-11-21 22:35:35,674 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:35:35,674 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 22:35:35,853 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:35:36,303 INFO  L134       CoverageAnalysis]: Checked inductivity of 359 backedges. 277 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked.
[2024-11-21 22:35:36,303 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 22:35:36,303 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575061012]
[2024-11-21 22:35:36,303 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575061012] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-21 22:35:36,303 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-21 22:35:36,303 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-21 22:35:36,303 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029887413]
[2024-11-21 22:35:36,304 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-21 22:35:36,304 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-21 22:35:36,304 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 22:35:36,305 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-21 22:35:36,305 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-21 22:35:36,305 INFO  L87              Difference]: Start difference. First operand 16805 states and 20008 transitions. Second operand  has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 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)
[2024-11-21 22:35:37,966 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 22:35:37,966 INFO  L93              Difference]: Finished difference Result 40835 states and 48524 transitions.
[2024-11-21 22:35:37,966 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-21 22:35:37,967 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 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 348
[2024-11-21 22:35:37,967 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 22:35:38,007 INFO  L225             Difference]: With dead ends: 40835
[2024-11-21 22:35:38,008 INFO  L226             Difference]: Without dead ends: 21900
[2024-11-21 22:35:38,028 INFO  L431           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
[2024-11-21 22:35:38,029 INFO  L432           NwaCegarLoop]: 749 mSDtfsCounter, 374 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 1191 mSolverCounterSat, 211 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 1402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 211 IncrementalHoareTripleChecker+Valid, 1191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time
[2024-11-21 22:35:38,029 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 810 Invalid, 1402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [211 Valid, 1191 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time]
[2024-11-21 22:35:38,048 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 21900 states.
[2024-11-21 22:35:38,280 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 21900 to 21894.
[2024-11-21 22:35:38,303 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 21894 states, 21893 states have (on average 1.1318229571095784) internal successors, (24779), 21893 states have internal predecessors, (24779), 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)
[2024-11-21 22:35:38,331 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 21894 states to 21894 states and 24779 transitions.
[2024-11-21 22:35:38,332 INFO  L78                 Accepts]: Start accepts. Automaton has 21894 states and 24779 transitions. Word has length 348
[2024-11-21 22:35:38,333 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-21 22:35:38,333 INFO  L471      AbstractCegarLoop]: Abstraction has 21894 states and 24779 transitions.
[2024-11-21 22:35:38,333 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 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)
[2024-11-21 22:35:38,333 INFO  L276                IsEmpty]: Start isEmpty. Operand 21894 states and 24779 transitions.
[2024-11-21 22:35:38,346 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 374
[2024-11-21 22:35:38,347 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-21 22:35:38,347 INFO  L215           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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]
[2024-11-21 22:35:38,347 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-21 22:35:38,347 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 22:35:38,348 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 22:35:38,348 INFO  L85        PathProgramCache]: Analyzing trace with hash -1446279023, now seen corresponding path program 1 times
[2024-11-21 22:35:38,348 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 22:35:38,348 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040944749]
[2024-11-21 22:35:38,348 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:35:38,348 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 22:35:38,423 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:35:38,786 INFO  L134       CoverageAnalysis]: Checked inductivity of 359 backedges. 277 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked.
[2024-11-21 22:35:38,786 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 22:35:38,787 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040944749]
[2024-11-21 22:35:38,787 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040944749] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-21 22:35:38,787 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-21 22:35:38,787 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-21 22:35:38,787 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334385899]
[2024-11-21 22:35:38,787 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-21 22:35:38,788 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-21 22:35:38,788 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 22:35:38,791 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-21 22:35:38,791 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-21 22:35:38,792 INFO  L87              Difference]: Start difference. First operand 21894 states and 24779 transitions. Second operand  has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 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)
[2024-11-21 22:35:40,184 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 22:35:40,184 INFO  L93              Difference]: Finished difference Result 48460 states and 55073 transitions.
[2024-11-21 22:35:40,184 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-21 22:35:40,185 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 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 373
[2024-11-21 22:35:40,185 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 22:35:40,223 INFO  L225             Difference]: With dead ends: 48460
[2024-11-21 22:35:40,224 INFO  L226             Difference]: Without dead ends: 26568
[2024-11-21 22:35:40,247 INFO  L431           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
[2024-11-21 22:35:40,249 INFO  L432           NwaCegarLoop]: 729 mSDtfsCounter, 369 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 1152 mSolverCounterSat, 155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 790 SdHoareTripleChecker+Invalid, 1307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 1152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time
[2024-11-21 22:35:40,250 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 790 Invalid, 1307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [155 Valid, 1152 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time]
[2024-11-21 22:35:40,273 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 26568 states.
[2024-11-21 22:35:40,554 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 26568 to 26568.
[2024-11-21 22:35:40,579 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 26568 states, 26567 states have (on average 1.1179658975420634) internal successors, (29701), 26567 states have internal predecessors, (29701), 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)
[2024-11-21 22:35:40,615 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 26568 states to 26568 states and 29701 transitions.
[2024-11-21 22:35:40,615 INFO  L78                 Accepts]: Start accepts. Automaton has 26568 states and 29701 transitions. Word has length 373
[2024-11-21 22:35:40,616 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-21 22:35:40,616 INFO  L471      AbstractCegarLoop]: Abstraction has 26568 states and 29701 transitions.
[2024-11-21 22:35:40,616 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 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)
[2024-11-21 22:35:40,617 INFO  L276                IsEmpty]: Start isEmpty. Operand 26568 states and 29701 transitions.
[2024-11-21 22:35:40,626 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 384
[2024-11-21 22:35:40,626 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-21 22:35:40,626 INFO  L215           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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]
[2024-11-21 22:35:40,627 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-11-21 22:35:40,627 INFO  L396      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 22:35:40,627 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 22:35:40,627 INFO  L85        PathProgramCache]: Analyzing trace with hash -1440550631, now seen corresponding path program 1 times
[2024-11-21 22:35:40,627 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 22:35:40,629 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169095939]
[2024-11-21 22:35:40,629 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:35:40,629 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 22:35:40,696 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:35:41,218 INFO  L134       CoverageAnalysis]: Checked inductivity of 357 backedges. 284 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked.
[2024-11-21 22:35:41,219 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 22:35:41,219 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169095939]
[2024-11-21 22:35:41,219 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169095939] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-21 22:35:41,219 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-21 22:35:41,219 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-21 22:35:41,219 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612544372]
[2024-11-21 22:35:41,219 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-21 22:35:41,222 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-21 22:35:41,222 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 22:35:41,223 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-21 22:35:41,223 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-21 22:35:41,224 INFO  L87              Difference]: Start difference. First operand 26568 states and 29701 transitions. Second operand  has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 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)
[2024-11-21 22:35:42,868 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 22:35:42,868 INFO  L93              Difference]: Finished difference Result 64200 states and 72104 transitions.
[2024-11-21 22:35:42,868 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-21 22:35:42,869 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 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 383
[2024-11-21 22:35:42,869 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 22:35:42,923 INFO  L225             Difference]: With dead ends: 64200
[2024-11-21 22:35:42,923 INFO  L226             Difference]: Without dead ends: 35082
[2024-11-21 22:35:42,953 INFO  L431           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
[2024-11-21 22:35:42,954 INFO  L432           NwaCegarLoop]: 687 mSDtfsCounter, 288 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 1137 mSolverCounterSat, 230 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 1367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 230 IncrementalHoareTripleChecker+Valid, 1137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time
[2024-11-21 22:35:42,955 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 742 Invalid, 1367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [230 Valid, 1137 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time]
[2024-11-21 22:35:42,987 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 35082 states.
[2024-11-21 22:35:43,334 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 35082 to 29531.
[2024-11-21 22:35:43,361 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 29531 states, 29530 states have (on average 1.1009820521503555) internal successors, (32512), 29530 states have internal predecessors, (32512), 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)
[2024-11-21 22:35:43,399 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 29531 states to 29531 states and 32512 transitions.
[2024-11-21 22:35:43,400 INFO  L78                 Accepts]: Start accepts. Automaton has 29531 states and 32512 transitions. Word has length 383
[2024-11-21 22:35:43,401 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-21 22:35:43,401 INFO  L471      AbstractCegarLoop]: Abstraction has 29531 states and 32512 transitions.
[2024-11-21 22:35:43,401 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 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)
[2024-11-21 22:35:43,401 INFO  L276                IsEmpty]: Start isEmpty. Operand 29531 states and 32512 transitions.
[2024-11-21 22:35:43,409 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 409
[2024-11-21 22:35:43,410 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-21 22:35:43,410 INFO  L215           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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]
[2024-11-21 22:35:43,410 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-11-21 22:35:43,411 INFO  L396      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 22:35:43,411 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 22:35:43,411 INFO  L85        PathProgramCache]: Analyzing trace with hash 1027671709, now seen corresponding path program 1 times
[2024-11-21 22:35:43,411 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 22:35:43,412 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344411683]
[2024-11-21 22:35:43,412 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:35:43,412 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 22:35:43,478 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:35:43,827 INFO  L134       CoverageAnalysis]: Checked inductivity of 357 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked.
[2024-11-21 22:35:43,828 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 22:35:43,828 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344411683]
[2024-11-21 22:35:43,828 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344411683] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-21 22:35:43,828 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-21 22:35:43,828 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-21 22:35:43,829 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570259622]
[2024-11-21 22:35:43,829 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-21 22:35:43,829 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-21 22:35:43,829 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 22:35:43,830 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-21 22:35:43,830 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-21 22:35:43,830 INFO  L87              Difference]: Start difference. First operand 29531 states and 32512 transitions. Second operand  has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 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)
[2024-11-21 22:35:45,560 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 22:35:45,560 INFO  L93              Difference]: Finished difference Result 67601 states and 74480 transitions.
[2024-11-21 22:35:45,560 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-21 22:35:45,561 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 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 408
[2024-11-21 22:35:45,561 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 22:35:45,596 INFO  L225             Difference]: With dead ends: 67601
[2024-11-21 22:35:45,597 INFO  L226             Difference]: Without dead ends: 38072
[2024-11-21 22:35:45,620 INFO  L431           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
[2024-11-21 22:35:45,620 INFO  L432           NwaCegarLoop]: 134 mSDtfsCounter, 466 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 1191 mSolverCounterSat, 289 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 1480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 289 IncrementalHoareTripleChecker+Valid, 1191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time
[2024-11-21 22:35:45,621 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [466 Valid, 169 Invalid, 1480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [289 Valid, 1191 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time]
[2024-11-21 22:35:45,648 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 38072 states.
[2024-11-21 22:35:46,052 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 38072 to 29954.
[2024-11-21 22:35:46,074 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 29954 states, 29953 states have (on average 1.100557540146229) internal successors, (32965), 29953 states have internal predecessors, (32965), 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)
[2024-11-21 22:35:46,110 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 29954 states to 29954 states and 32965 transitions.
[2024-11-21 22:35:46,110 INFO  L78                 Accepts]: Start accepts. Automaton has 29954 states and 32965 transitions. Word has length 408
[2024-11-21 22:35:46,111 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-21 22:35:46,111 INFO  L471      AbstractCegarLoop]: Abstraction has 29954 states and 32965 transitions.
[2024-11-21 22:35:46,111 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 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)
[2024-11-21 22:35:46,112 INFO  L276                IsEmpty]: Start isEmpty. Operand 29954 states and 32965 transitions.
[2024-11-21 22:35:46,128 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 520
[2024-11-21 22:35:46,128 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-21 22:35:46,129 INFO  L215           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-21 22:35:46,129 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-11-21 22:35:46,129 INFO  L396      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 22:35:46,130 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 22:35:46,130 INFO  L85        PathProgramCache]: Analyzing trace with hash -1665160821, now seen corresponding path program 1 times
[2024-11-21 22:35:46,130 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 22:35:46,130 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091763379]
[2024-11-21 22:35:46,130 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:35:46,131 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 22:35:46,225 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:35:47,025 INFO  L134       CoverageAnalysis]: Checked inductivity of 359 backedges. 118 proven. 241 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-21 22:35:47,026 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 22:35:47,026 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091763379]
[2024-11-21 22:35:47,026 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091763379] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-21 22:35:47,026 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1064005935]
[2024-11-21 22:35:47,027 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:35:47,027 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-21 22:35:47,027 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-21 22:35:47,029 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-21 22:35:47,031 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-21 22:35:47,236 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:35:47,239 INFO  L255         TraceCheckSpWp]: Trace formula consists of 651 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-21 22:35:47,251 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-21 22:35:47,821 INFO  L134       CoverageAnalysis]: Checked inductivity of 359 backedges. 118 proven. 241 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-21 22:35:47,821 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-21 22:35:48,473 INFO  L134       CoverageAnalysis]: Checked inductivity of 359 backedges. 316 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-21 22:35:48,474 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1064005935] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-21 22:35:48,474 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-21 22:35:48,474 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9
[2024-11-21 22:35:48,474 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003540384]
[2024-11-21 22:35:48,475 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-21 22:35:48,476 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-21 22:35:48,476 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 22:35:48,477 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-21 22:35:48,478 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=50, Unknown=0, NotChecked=0, Total=90
[2024-11-21 22:35:48,478 INFO  L87              Difference]: Start difference. First operand 29954 states and 32965 transitions. Second operand  has 10 states, 10 states have (on average 103.7) internal successors, (1037), 9 states have internal predecessors, (1037), 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)
[2024-11-21 22:35:53,862 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 22:35:53,862 INFO  L93              Difference]: Finished difference Result 88887 states and 97579 transitions.
[2024-11-21 22:35:53,863 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-11-21 22:35:53,863 INFO  L78                 Accepts]: Start accepts. Automaton has  has 10 states, 10 states have (on average 103.7) internal successors, (1037), 9 states have internal predecessors, (1037), 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 519
[2024-11-21 22:35:53,864 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 22:35:53,919 INFO  L225             Difference]: With dead ends: 88887
[2024-11-21 22:35:53,920 INFO  L226             Difference]: Without dead ends: 57660
[2024-11-21 22:35:53,945 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 1041 GetRequests, 1033 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=50, Unknown=0, NotChecked=0, Total=90
[2024-11-21 22:35:53,946 INFO  L432           NwaCegarLoop]: 102 mSDtfsCounter, 3118 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 7028 mSolverCounterSat, 865 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3118 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 7893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 865 IncrementalHoareTripleChecker+Valid, 7028 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time
[2024-11-21 22:35:53,946 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [3118 Valid, 421 Invalid, 7893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [865 Valid, 7028 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time]
[2024-11-21 22:35:53,992 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 57660 states.
[2024-11-21 22:35:54,430 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 57660 to 36362.
[2024-11-21 22:35:54,454 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 36362 states, 36361 states have (on average 1.0971920464233658) internal successors, (39895), 36361 states have internal predecessors, (39895), 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)
[2024-11-21 22:35:54,501 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 36362 states to 36362 states and 39895 transitions.
[2024-11-21 22:35:54,501 INFO  L78                 Accepts]: Start accepts. Automaton has 36362 states and 39895 transitions. Word has length 519
[2024-11-21 22:35:54,502 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-21 22:35:54,502 INFO  L471      AbstractCegarLoop]: Abstraction has 36362 states and 39895 transitions.
[2024-11-21 22:35:54,502 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 10 states have (on average 103.7) internal successors, (1037), 9 states have internal predecessors, (1037), 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)
[2024-11-21 22:35:54,502 INFO  L276                IsEmpty]: Start isEmpty. Operand 36362 states and 39895 transitions.
[2024-11-21 22:35:54,610 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 636
[2024-11-21 22:35:54,610 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-21 22:35:54,611 INFO  L215           NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-21 22:35:54,620 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-21 22:35:54,811 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11
[2024-11-21 22:35:54,812 INFO  L396      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 22:35:54,813 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 22:35:54,813 INFO  L85        PathProgramCache]: Analyzing trace with hash -1435012347, now seen corresponding path program 1 times
[2024-11-21 22:35:54,813 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 22:35:54,813 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690311382]
[2024-11-21 22:35:54,813 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:35:54,813 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 22:35:54,915 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:35:55,228 INFO  L134       CoverageAnalysis]: Checked inductivity of 664 backedges. 352 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked.
[2024-11-21 22:35:55,229 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 22:35:55,229 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690311382]
[2024-11-21 22:35:55,229 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690311382] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-21 22:35:55,229 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-21 22:35:55,229 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-21 22:35:55,229 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665666188]
[2024-11-21 22:35:55,229 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-21 22:35:55,230 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-21 22:35:55,230 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 22:35:55,231 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-21 22:35:55,231 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-21 22:35:55,232 INFO  L87              Difference]: Start difference. First operand 36362 states and 39895 transitions. Second operand  has 3 states, 3 states have (on average 136.0) internal successors, (408), 2 states have internal predecessors, (408), 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)
[2024-11-21 22:35:55,983 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 22:35:55,983 INFO  L93              Difference]: Finished difference Result 71439 states and 78401 transitions.
[2024-11-21 22:35:55,984 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-21 22:35:55,984 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 136.0) internal successors, (408), 2 states have internal predecessors, (408), 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 635
[2024-11-21 22:35:55,984 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 22:35:56,018 INFO  L225             Difference]: With dead ends: 71439
[2024-11-21 22:35:56,018 INFO  L226             Difference]: Without dead ends: 35503
[2024-11-21 22:35:56,040 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-21 22:35:56,040 INFO  L432           NwaCegarLoop]: 104 mSDtfsCounter, 413 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-21 22:35:56,041 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 104 Invalid, 642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 637 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-21 22:35:56,062 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 35503 states.
[2024-11-21 22:35:56,279 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 35503 to 35497.
[2024-11-21 22:35:56,303 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 35497 states, 35496 states have (on average 1.0962361956276763) internal successors, (38912), 35496 states have internal predecessors, (38912), 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)
[2024-11-21 22:35:56,335 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 35497 states to 35497 states and 38912 transitions.
[2024-11-21 22:35:56,336 INFO  L78                 Accepts]: Start accepts. Automaton has 35497 states and 38912 transitions. Word has length 635
[2024-11-21 22:35:56,336 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-21 22:35:56,337 INFO  L471      AbstractCegarLoop]: Abstraction has 35497 states and 38912 transitions.
[2024-11-21 22:35:56,337 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 136.0) internal successors, (408), 2 states have internal predecessors, (408), 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)
[2024-11-21 22:35:56,337 INFO  L276                IsEmpty]: Start isEmpty. Operand 35497 states and 38912 transitions.
[2024-11-21 22:35:56,354 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 662
[2024-11-21 22:35:56,354 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-21 22:35:56,354 INFO  L215           NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-21 22:35:56,354 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2024-11-21 22:35:56,355 INFO  L396      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 22:35:56,355 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 22:35:56,355 INFO  L85        PathProgramCache]: Analyzing trace with hash -1650487390, now seen corresponding path program 1 times
[2024-11-21 22:35:56,355 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 22:35:56,355 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479521316]
[2024-11-21 22:35:56,355 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:35:56,355 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 22:35:56,471 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:35:56,770 INFO  L134       CoverageAnalysis]: Checked inductivity of 664 backedges. 352 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked.
[2024-11-21 22:35:56,770 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 22:35:56,770 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479521316]
[2024-11-21 22:35:56,770 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479521316] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-21 22:35:56,770 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-21 22:35:56,771 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-21 22:35:56,771 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512234464]
[2024-11-21 22:35:56,771 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-21 22:35:56,774 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-21 22:35:56,775 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 22:35:56,775 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-21 22:35:56,775 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-21 22:35:56,776 INFO  L87              Difference]: Start difference. First operand 35497 states and 38912 transitions. Second operand  has 3 states, 3 states have (on average 144.66666666666666) internal successors, (434), 3 states have internal predecessors, (434), 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)
[2024-11-21 22:35:58,172 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 22:35:58,172 INFO  L93              Difference]: Finished difference Result 80344 states and 88597 transitions.
[2024-11-21 22:35:58,173 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-21 22:35:58,173 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 144.66666666666666) internal successors, (434), 3 states have internal predecessors, (434), 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 661
[2024-11-21 22:35:58,173 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 22:35:58,216 INFO  L225             Difference]: With dead ends: 80344
[2024-11-21 22:35:58,216 INFO  L226             Difference]: Without dead ends: 45274
[2024-11-21 22:35:58,240 INFO  L431           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
[2024-11-21 22:35:58,240 INFO  L432           NwaCegarLoop]: 310 mSDtfsCounter, 439 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 1173 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 1345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 1173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2024-11-21 22:35:58,240 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 362 Invalid, 1345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 1173 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2024-11-21 22:35:58,268 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 45274 states.
[2024-11-21 22:35:58,658 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 45274 to 42720.
[2024-11-21 22:35:58,685 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 42720 states, 42719 states have (on average 1.0914113158079544) internal successors, (46624), 42719 states have internal predecessors, (46624), 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)
[2024-11-21 22:35:58,722 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 42720 states to 42720 states and 46624 transitions.
[2024-11-21 22:35:58,723 INFO  L78                 Accepts]: Start accepts. Automaton has 42720 states and 46624 transitions. Word has length 661
[2024-11-21 22:35:58,724 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-21 22:35:58,724 INFO  L471      AbstractCegarLoop]: Abstraction has 42720 states and 46624 transitions.
[2024-11-21 22:35:58,724 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 144.66666666666666) internal successors, (434), 3 states have internal predecessors, (434), 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)
[2024-11-21 22:35:58,724 INFO  L276                IsEmpty]: Start isEmpty. Operand 42720 states and 46624 transitions.
[2024-11-21 22:35:58,752 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 699
[2024-11-21 22:35:58,752 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-21 22:35:58,752 INFO  L215           NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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]
[2024-11-21 22:35:58,754 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2024-11-21 22:35:58,755 INFO  L396      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 22:35:58,755 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 22:35:58,755 INFO  L85        PathProgramCache]: Analyzing trace with hash 1090791905, now seen corresponding path program 1 times
[2024-11-21 22:35:58,755 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 22:35:58,755 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703661478]
[2024-11-21 22:35:58,756 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:35:58,756 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 22:35:58,843 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:35:59,421 INFO  L134       CoverageAnalysis]: Checked inductivity of 1002 backedges. 841 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked.
[2024-11-21 22:35:59,422 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 22:35:59,422 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703661478]
[2024-11-21 22:35:59,422 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703661478] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-21 22:35:59,422 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-21 22:35:59,422 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-21 22:35:59,422 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812982855]
[2024-11-21 22:35:59,423 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-21 22:35:59,423 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-21 22:35:59,424 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 22:35:59,424 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-21 22:35:59,424 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-21 22:35:59,425 INFO  L87              Difference]: Start difference. First operand 42720 states and 46624 transitions. Second operand  has 4 states, 4 states have (on average 145.5) internal successors, (582), 4 states have internal predecessors, (582), 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)
[2024-11-21 22:36:05,447 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-21 22:36:05,619 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 22:36:05,619 INFO  L93              Difference]: Finished difference Result 102929 states and 112737 transitions.
[2024-11-21 22:36:05,619 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-21 22:36:05,620 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 145.5) internal successors, (582), 4 states have internal predecessors, (582), 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 698
[2024-11-21 22:36:05,620 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 22:36:05,680 INFO  L225             Difference]: With dead ends: 102929
[2024-11-21 22:36:05,680 INFO  L226             Difference]: Without dead ends: 60636
[2024-11-21 22:36:05,711 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-21 22:36:05,712 INFO  L432           NwaCegarLoop]: 97 mSDtfsCounter, 825 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 2269 mSolverCounterSat, 403 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 825 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 2673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 403 IncrementalHoareTripleChecker+Valid, 2269 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time
[2024-11-21 22:36:05,712 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [825 Valid, 180 Invalid, 2673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [403 Valid, 2269 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time]
[2024-11-21 22:36:05,756 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 60636 states.
[2024-11-21 22:36:06,512 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 60636 to 56374.
[2024-11-21 22:36:06,553 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 56374 states, 56373 states have (on average 1.100172068188672) internal successors, (62020), 56373 states have internal predecessors, (62020), 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)
[2024-11-21 22:36:06,625 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 56374 states to 56374 states and 62020 transitions.
[2024-11-21 22:36:06,626 INFO  L78                 Accepts]: Start accepts. Automaton has 56374 states and 62020 transitions. Word has length 698
[2024-11-21 22:36:06,626 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-21 22:36:06,626 INFO  L471      AbstractCegarLoop]: Abstraction has 56374 states and 62020 transitions.
[2024-11-21 22:36:06,626 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 145.5) internal successors, (582), 4 states have internal predecessors, (582), 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)
[2024-11-21 22:36:06,626 INFO  L276                IsEmpty]: Start isEmpty. Operand 56374 states and 62020 transitions.
[2024-11-21 22:36:06,650 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 700
[2024-11-21 22:36:06,650 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-21 22:36:06,651 INFO  L215           NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-21 22:36:06,651 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2024-11-21 22:36:06,651 INFO  L396      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 22:36:06,651 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 22:36:06,652 INFO  L85        PathProgramCache]: Analyzing trace with hash 1339675404, now seen corresponding path program 1 times
[2024-11-21 22:36:06,652 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 22:36:06,652 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011594718]
[2024-11-21 22:36:06,652 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:36:06,652 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 22:36:06,778 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:36:07,237 INFO  L134       CoverageAnalysis]: Checked inductivity of 1020 backedges. 778 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked.
[2024-11-21 22:36:07,237 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 22:36:07,237 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011594718]
[2024-11-21 22:36:07,237 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011594718] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-21 22:36:07,238 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-21 22:36:07,238 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-21 22:36:07,238 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81679261]
[2024-11-21 22:36:07,238 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-21 22:36:07,239 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-21 22:36:07,239 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 22:36:07,240 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-21 22:36:07,240 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-21 22:36:07,240 INFO  L87              Difference]: Start difference. First operand 56374 states and 62020 transitions. Second operand  has 3 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 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)
[2024-11-21 22:36:08,950 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 22:36:08,950 INFO  L93              Difference]: Finished difference Result 124676 states and 137552 transitions.
[2024-11-21 22:36:08,950 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-21 22:36:08,951 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 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 699
[2024-11-21 22:36:08,951 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 22:36:09,365 INFO  L225             Difference]: With dead ends: 124676
[2024-11-21 22:36:09,365 INFO  L226             Difference]: Without dead ends: 66171
[2024-11-21 22:36:09,383 INFO  L431           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
[2024-11-21 22:36:09,383 INFO  L432           NwaCegarLoop]: 558 mSDtfsCounter, 431 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 1160 mSolverCounterSat, 263 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 1423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 263 IncrementalHoareTripleChecker+Valid, 1160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time
[2024-11-21 22:36:09,384 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [431 Valid, 594 Invalid, 1423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [263 Valid, 1160 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time]
[2024-11-21 22:36:09,412 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 66171 states.
[2024-11-21 22:36:10,249 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 66171 to 64461.
[2024-11-21 22:36:10,310 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 64461 states, 64460 states have (on average 1.099922432516289) internal successors, (70901), 64460 states have internal predecessors, (70901), 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)
[2024-11-21 22:36:10,388 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 64461 states to 64461 states and 70901 transitions.
[2024-11-21 22:36:10,389 INFO  L78                 Accepts]: Start accepts. Automaton has 64461 states and 70901 transitions. Word has length 699
[2024-11-21 22:36:10,389 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-21 22:36:10,390 INFO  L471      AbstractCegarLoop]: Abstraction has 64461 states and 70901 transitions.
[2024-11-21 22:36:10,390 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 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)
[2024-11-21 22:36:10,390 INFO  L276                IsEmpty]: Start isEmpty. Operand 64461 states and 70901 transitions.
[2024-11-21 22:36:10,413 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 719
[2024-11-21 22:36:10,413 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-21 22:36:10,414 INFO  L215           NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2024-11-21 22:36:10,414 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2024-11-21 22:36:10,414 INFO  L396      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 22:36:10,414 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 22:36:10,414 INFO  L85        PathProgramCache]: Analyzing trace with hash 448649391, now seen corresponding path program 1 times
[2024-11-21 22:36:10,414 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 22:36:10,414 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848524067]
[2024-11-21 22:36:10,415 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:36:10,415 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 22:36:10,689 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:36:11,400 INFO  L134       CoverageAnalysis]: Checked inductivity of 1022 backedges. 750 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked.
[2024-11-21 22:36:11,401 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 22:36:11,401 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848524067]
[2024-11-21 22:36:11,401 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848524067] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-21 22:36:11,401 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-21 22:36:11,401 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-21 22:36:11,401 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450859047]
[2024-11-21 22:36:11,402 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-21 22:36:11,402 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-21 22:36:11,402 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 22:36:11,403 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-21 22:36:11,403 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-21 22:36:11,403 INFO  L87              Difference]: Start difference. First operand 64461 states and 70901 transitions. Second operand  has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:36:12,820 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 22:36:12,820 INFO  L93              Difference]: Finished difference Result 131048 states and 144049 transitions.
[2024-11-21 22:36:12,821 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-21 22:36:12,821 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 718
[2024-11-21 22:36:12,821 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 22:36:12,883 INFO  L225             Difference]: With dead ends: 131048
[2024-11-21 22:36:12,883 INFO  L226             Difference]: Without dead ends: 67014
[2024-11-21 22:36:12,915 INFO  L431           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
[2024-11-21 22:36:12,916 INFO  L432           NwaCegarLoop]: 731 mSDtfsCounter, 114 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 1122 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 781 SdHoareTripleChecker+Invalid, 1157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2024-11-21 22:36:12,916 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 781 Invalid, 1157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1122 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2024-11-21 22:36:12,955 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 67014 states.
[2024-11-21 22:36:13,697 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 67014 to 66586.
[2024-11-21 22:36:13,743 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 66586 states, 66585 states have (on average 1.0968386273184652) internal successors, (73033), 66585 states have internal predecessors, (73033), 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)
[2024-11-21 22:36:13,815 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 66586 states to 66586 states and 73033 transitions.
[2024-11-21 22:36:13,816 INFO  L78                 Accepts]: Start accepts. Automaton has 66586 states and 73033 transitions. Word has length 718
[2024-11-21 22:36:13,817 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-21 22:36:13,817 INFO  L471      AbstractCegarLoop]: Abstraction has 66586 states and 73033 transitions.
[2024-11-21 22:36:13,817 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:36:13,817 INFO  L276                IsEmpty]: Start isEmpty. Operand 66586 states and 73033 transitions.
[2024-11-21 22:36:13,842 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 723
[2024-11-21 22:36:13,843 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-21 22:36:13,843 INFO  L215           NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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]
[2024-11-21 22:36:13,843 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2024-11-21 22:36:13,843 INFO  L396      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 22:36:13,844 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 22:36:13,844 INFO  L85        PathProgramCache]: Analyzing trace with hash 345824951, now seen corresponding path program 1 times
[2024-11-21 22:36:13,844 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 22:36:13,844 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192156718]
[2024-11-21 22:36:13,845 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:36:13,845 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 22:36:13,936 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:36:14,523 INFO  L134       CoverageAnalysis]: Checked inductivity of 1060 backedges. 817 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked.
[2024-11-21 22:36:14,524 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 22:36:14,524 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192156718]
[2024-11-21 22:36:14,524 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192156718] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-21 22:36:14,524 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-21 22:36:14,524 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-21 22:36:14,525 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370728778]
[2024-11-21 22:36:14,525 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-21 22:36:14,526 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-21 22:36:14,526 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 22:36:14,527 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-21 22:36:14,527 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-21 22:36:14,527 INFO  L87              Difference]: Start difference. First operand 66586 states and 73033 transitions. Second operand  has 3 states, 3 states have (on average 175.0) internal successors, (525), 3 states have internal predecessors, (525), 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)
[2024-11-21 22:36:16,279 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 22:36:16,279 INFO  L93              Difference]: Finished difference Result 151464 states and 166277 transitions.
[2024-11-21 22:36:16,280 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-21 22:36:16,280 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 175.0) internal successors, (525), 3 states have internal predecessors, (525), 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 722
[2024-11-21 22:36:16,280 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 22:36:16,362 INFO  L225             Difference]: With dead ends: 151464
[2024-11-21 22:36:16,362 INFO  L226             Difference]: Without dead ends: 85305
[2024-11-21 22:36:16,384 INFO  L431           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
[2024-11-21 22:36:16,384 INFO  L432           NwaCegarLoop]: 227 mSDtfsCounter, 396 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1169 mSolverCounterSat, 196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 1365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 196 IncrementalHoareTripleChecker+Valid, 1169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time
[2024-11-21 22:36:16,384 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [396 Valid, 264 Invalid, 1365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [196 Valid, 1169 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time]
[2024-11-21 22:36:16,431 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 85305 states.
[2024-11-21 22:36:17,207 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 85305 to 82324.
[2024-11-21 22:36:17,249 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 82324 states, 82323 states have (on average 1.089731909672874) internal successors, (89710), 82323 states have internal predecessors, (89710), 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)
[2024-11-21 22:36:17,320 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 82324 states to 82324 states and 89710 transitions.
[2024-11-21 22:36:17,321 INFO  L78                 Accepts]: Start accepts. Automaton has 82324 states and 89710 transitions. Word has length 722
[2024-11-21 22:36:17,322 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-21 22:36:17,322 INFO  L471      AbstractCegarLoop]: Abstraction has 82324 states and 89710 transitions.
[2024-11-21 22:36:17,322 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 175.0) internal successors, (525), 3 states have internal predecessors, (525), 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)
[2024-11-21 22:36:17,322 INFO  L276                IsEmpty]: Start isEmpty. Operand 82324 states and 89710 transitions.
[2024-11-21 22:36:17,346 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 753
[2024-11-21 22:36:17,346 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-21 22:36:17,347 INFO  L215           NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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]
[2024-11-21 22:36:17,347 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2024-11-21 22:36:17,347 INFO  L396      AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 22:36:17,347 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 22:36:17,347 INFO  L85        PathProgramCache]: Analyzing trace with hash -152065236, now seen corresponding path program 1 times
[2024-11-21 22:36:17,348 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 22:36:17,348 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240521094]
[2024-11-21 22:36:17,348 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:36:17,348 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 22:36:17,434 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:36:18,548 INFO  L134       CoverageAnalysis]: Checked inductivity of 1100 backedges. 785 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked.
[2024-11-21 22:36:18,548 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 22:36:18,548 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240521094]
[2024-11-21 22:36:18,548 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240521094] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-21 22:36:18,549 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-21 22:36:18,549 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-21 22:36:18,549 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006490505]
[2024-11-21 22:36:18,549 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-21 22:36:18,550 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-21 22:36:18,550 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 22:36:18,551 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-21 22:36:18,551 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-21 22:36:18,551 INFO  L87              Difference]: Start difference. First operand 82324 states and 89710 transitions. Second operand  has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:36:20,299 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 22:36:20,300 INFO  L93              Difference]: Finished difference Result 168472 states and 183279 transitions.
[2024-11-21 22:36:20,300 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-21 22:36:20,300 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 752
[2024-11-21 22:36:20,301 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 22:36:20,393 INFO  L225             Difference]: With dead ends: 168472
[2024-11-21 22:36:20,393 INFO  L226             Difference]: Without dead ends: 86575
[2024-11-21 22:36:20,415 INFO  L431           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
[2024-11-21 22:36:20,415 INFO  L432           NwaCegarLoop]: 700 mSDtfsCounter, 126 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 1127 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 1201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time
[2024-11-21 22:36:20,415 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 745 Invalid, 1201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1127 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time]
[2024-11-21 22:36:20,467 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 86575 states.
[2024-11-21 22:36:21,202 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 86575 to 86572.
[2024-11-21 22:36:21,254 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 86572 states, 86571 states have (on average 1.0804426424553257) internal successors, (93535), 86571 states have internal predecessors, (93535), 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)
[2024-11-21 22:36:21,326 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 86572 states to 86572 states and 93535 transitions.
[2024-11-21 22:36:21,327 INFO  L78                 Accepts]: Start accepts. Automaton has 86572 states and 93535 transitions. Word has length 752
[2024-11-21 22:36:21,328 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-21 22:36:21,328 INFO  L471      AbstractCegarLoop]: Abstraction has 86572 states and 93535 transitions.
[2024-11-21 22:36:21,328 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 22:36:21,328 INFO  L276                IsEmpty]: Start isEmpty. Operand 86572 states and 93535 transitions.
[2024-11-21 22:36:21,647 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1039
[2024-11-21 22:36:21,647 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-21 22:36:21,647 INFO  L215           NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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]
[2024-11-21 22:36:21,648 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2024-11-21 22:36:21,648 INFO  L396      AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 22:36:21,648 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 22:36:21,648 INFO  L85        PathProgramCache]: Analyzing trace with hash 1102994304, now seen corresponding path program 1 times
[2024-11-21 22:36:21,648 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 22:36:21,649 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691213854]
[2024-11-21 22:36:21,649 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 22:36:21,649 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 22:36:21,846 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 22:36:22,190 INFO  L134       CoverageAnalysis]: Checked inductivity of 1835 backedges. 841 proven. 0 refuted. 0 times theorem prover too weak. 994 trivial. 0 not checked.
[2024-11-21 22:36:22,191 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 22:36:22,191 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691213854]
[2024-11-21 22:36:22,191 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691213854] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-21 22:36:22,191 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-21 22:36:22,191 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-21 22:36:22,192 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048339398]
[2024-11-21 22:36:22,192 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-21 22:36:22,193 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-21 22:36:22,193 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 22:36:22,194 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-21 22:36:22,194 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-21 22:36:22,194 INFO  L87              Difference]: Start difference. First operand 86572 states and 93535 transitions. Second operand  has 3 states, 3 states have (on average 186.33333333333334) internal successors, (559), 3 states have internal predecessors, (559), 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)
[2024-11-21 22:36:23,670 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 22:36:23,670 INFO  L93              Difference]: Finished difference Result 173978 states and 187714 transitions.
[2024-11-21 22:36:23,671 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-21 22:36:23,671 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 186.33333333333334) internal successors, (559), 3 states have internal predecessors, (559), 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 1038
[2024-11-21 22:36:23,671 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 22:36:23,754 INFO  L225             Difference]: With dead ends: 173978
[2024-11-21 22:36:23,754 INFO  L226             Difference]: Without dead ends: 87832
[2024-11-21 22:36:23,802 INFO  L431           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
[2024-11-21 22:36:23,803 INFO  L432           NwaCegarLoop]: 275 mSDtfsCounter, 450 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 1092 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 450 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 1200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1092 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2024-11-21 22:36:23,803 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [450 Valid, 320 Invalid, 1200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1092 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2024-11-21 22:36:23,858 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 87832 states.