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


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


Checking for ERROR reachability
Using default analysis
Version c7c6ca5d
Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.zaher.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6fd8c0f78f1a02f0110655a19aab6ed326f45dcdd8f1755f6a67e81d29b9a49c
--- Real Ultimate output ---
This is Ultimate 0.2.5-?-c7c6ca5-m
[2024-11-08 19:18:53,452 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-08 19:18:53,522 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf
[2024-11-08 19:18:53,528 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-08 19:18:53,529 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-08 19:18:53,571 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-08 19:18:53,571 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-08 19:18:53,572 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-08 19:18:53,572 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-08 19:18:53,572 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-08 19:18:53,573 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-08 19:18:53,574 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-08 19:18:53,574 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-08 19:18:53,578 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-08 19:18:53,578 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-08 19:18:53,579 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-08 19:18:53,579 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-08 19:18:53,579 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-08 19:18:53,579 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-08 19:18:53,580 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-08 19:18:53,580 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-08 19:18:53,580 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-08 19:18:53,581 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-08 19:18:53,581 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-08 19:18:53,581 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-08 19:18:53,581 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-08 19:18:53,582 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-08 19:18:53,582 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-08 19:18:53,582 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-08 19:18:53,583 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 19:18:53,583 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-08 19:18:53,583 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-08 19:18:53,583 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-08 19:18:53,584 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-08 19:18:53,584 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-08 19:18:53,584 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-08 19:18:53,585 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-08 19:18:53,585 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-08 19:18:53,585 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-08 19:18:53,585 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6fd8c0f78f1a02f0110655a19aab6ed326f45dcdd8f1755f6a67e81d29b9a49c
[2024-11-08 19:18:53,862 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-08 19:18:53,886 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-08 19:18:53,888 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-08 19:18:53,890 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-08 19:18:53,890 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-08 19:18:53,891 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.zaher.c
[2024-11-08 19:18:55,326 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-08 19:18:55,613 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-08 19:18:55,614 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.zaher.c
[2024-11-08 19:18:55,626 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/478cab7c3/7b3d739192d14a0fa9bcf28b2afa56b1/FLAGe1464aad3
[2024-11-08 19:18:55,637 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/478cab7c3/7b3d739192d14a0fa9bcf28b2afa56b1
[2024-11-08 19:18:55,640 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-08 19:18:55,641 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-08 19:18:55,642 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-08 19:18:55,642 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-08 19:18:55,647 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-08 19:18:55,648 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:18:55" (1/1) ...
[2024-11-08 19:18:55,650 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fa120ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:55, skipping insertion in model container
[2024-11-08 19:18:55,651 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:18:55" (1/1) ...
[2024-11-08 19:18:55,681 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-08 19:18:55,850 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.zaher.c[1245,1258]
[2024-11-08 19:18:55,977 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-08 19:18:55,989 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-08 19:18:55,998 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.zaher.c[1245,1258]
[2024-11-08 19:18:56,074 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-08 19:18:56,104 INFO  L204         MainTranslator]: Completed translation
[2024-11-08 19:18:56,105 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:56 WrapperNode
[2024-11-08 19:18:56,105 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-08 19:18:56,106 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-08 19:18:56,111 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-08 19:18:56,111 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-08 19:18:56,120 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:56" (1/1) ...
[2024-11-08 19:18:56,143 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:56" (1/1) ...
[2024-11-08 19:18:56,232 INFO  L138                Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 778
[2024-11-08 19:18:56,233 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-08 19:18:56,234 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-08 19:18:56,235 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-08 19:18:56,235 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-08 19:18:56,246 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:56" (1/1) ...
[2024-11-08 19:18:56,246 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:56" (1/1) ...
[2024-11-08 19:18:56,273 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:56" (1/1) ...
[2024-11-08 19:18:56,317 INFO  L175           MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0].
[2024-11-08 19:18:56,324 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:56" (1/1) ...
[2024-11-08 19:18:56,324 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:56" (1/1) ...
[2024-11-08 19:18:56,356 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:56" (1/1) ...
[2024-11-08 19:18:56,369 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:56" (1/1) ...
[2024-11-08 19:18:56,384 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:56" (1/1) ...
[2024-11-08 19:18:56,398 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:56" (1/1) ...
[2024-11-08 19:18:56,415 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-08 19:18:56,416 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-08 19:18:56,416 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-08 19:18:56,417 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-08 19:18:56,417 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:56" (1/1) ...
[2024-11-08 19:18:56,423 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 19:18:56,436 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-08 19:18:56,453 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)
[2024-11-08 19:18:56,459 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
[2024-11-08 19:18:56,508 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-08 19:18:56,508 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-08 19:18:56,509 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-11-08 19:18:56,509 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-08 19:18:56,509 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-08 19:18:56,682 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-08 19:18:56,684 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-08 19:18:57,644 INFO  L?                        ?]: Removed 340 outVars from TransFormulas that were not future-live.
[2024-11-08 19:18:57,644 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-08 19:18:57,658 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-08 19:18:57,660 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-08 19:18:57,660 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:18:57 BoogieIcfgContainer
[2024-11-08 19:18:57,660 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-08 19:18:57,663 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-08 19:18:57,664 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-08 19:18:57,666 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-08 19:18:57,667 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 07:18:55" (1/3) ...
[2024-11-08 19:18:57,667 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34606e33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:18:57, skipping insertion in model container
[2024-11-08 19:18:57,667 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:18:56" (2/3) ...
[2024-11-08 19:18:57,668 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34606e33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:18:57, skipping insertion in model container
[2024-11-08 19:18:57,668 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:18:57" (3/3) ...
[2024-11-08 19:18:57,669 INFO  L112   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.zaher.c
[2024-11-08 19:18:57,686 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-08 19:18:57,686 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-08 19:18:57,756 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-08 19:18:57,763 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;@2c798ad1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-08 19:18:57,763 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-08 19:18:57,767 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 182 states, 180 states have (on average 1.4944444444444445) internal successors, (269), 181 states have internal predecessors, (269), 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)
[2024-11-08 19:18:57,776 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 54
[2024-11-08 19:18:57,777 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 19:18:57,778 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 19:18:57,779 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 19:18:57,784 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:18:57,785 INFO  L85        PathProgramCache]: Analyzing trace with hash 52855507, now seen corresponding path program 1 times
[2024-11-08 19:18:57,794 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:18:57,795 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503286286]
[2024-11-08 19:18:57,795 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:18:57,795 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:18:58,063 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:18:58,612 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 19:18:58,614 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:18:58,615 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503286286]
[2024-11-08 19:18:58,616 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503286286] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 19:18:58,616 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 19:18:58,616 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 19:18:58,618 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146623094]
[2024-11-08 19:18:58,619 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 19:18:58,623 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 19:18:58,623 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:18:58,644 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 19:18:58,645 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 19:18:58,648 INFO  L87              Difference]: Start difference. First operand  has 182 states, 180 states have (on average 1.4944444444444445) internal successors, (269), 181 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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)
[2024-11-08 19:18:58,716 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 19:18:58,719 INFO  L93              Difference]: Finished difference Result 305 states and 453 transitions.
[2024-11-08 19:18:58,722 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-08 19:18:58,724 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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 53
[2024-11-08 19:18:58,724 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 19:18:58,733 INFO  L225             Difference]: With dead ends: 305
[2024-11-08 19:18:58,734 INFO  L226             Difference]: Without dead ends: 181
[2024-11-08 19:18:58,738 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 19:18:58,742 INFO  L432           NwaCegarLoop]: 263 mSDtfsCounter, 0 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 783 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 19:18:58,743 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 783 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 19:18:58,758 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 181 states.
[2024-11-08 19:18:58,776 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181.
[2024-11-08 19:18:58,778 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 181 states, 180 states have (on average 1.4833333333333334) internal successors, (267), 180 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)
[2024-11-08 19:18:58,781 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 267 transitions.
[2024-11-08 19:18:58,782 INFO  L78                 Accepts]: Start accepts. Automaton has 181 states and 267 transitions. Word has length 53
[2024-11-08 19:18:58,783 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 19:18:58,783 INFO  L471      AbstractCegarLoop]: Abstraction has 181 states and 267 transitions.
[2024-11-08 19:18:58,783 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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)
[2024-11-08 19:18:58,783 INFO  L276                IsEmpty]: Start isEmpty. Operand 181 states and 267 transitions.
[2024-11-08 19:18:58,785 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 55
[2024-11-08 19:18:58,786 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 19:18:58,786 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 19:18:58,786 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-08 19:18:58,786 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 19:18:58,787 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:18:58,787 INFO  L85        PathProgramCache]: Analyzing trace with hash 1640216182, now seen corresponding path program 1 times
[2024-11-08 19:18:58,787 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:18:58,787 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873070124]
[2024-11-08 19:18:58,787 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:18:58,788 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:18:58,852 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:18:59,042 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 19:18:59,043 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:18:59,043 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873070124]
[2024-11-08 19:18:59,043 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873070124] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 19:18:59,043 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 19:18:59,043 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 19:18:59,044 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717413657]
[2024-11-08 19:18:59,044 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 19:18:59,045 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 19:18:59,045 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:18:59,046 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 19:18:59,046 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 19:18:59,049 INFO  L87              Difference]: Start difference. First operand 181 states and 267 transitions. Second operand  has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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)
[2024-11-08 19:18:59,108 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 19:18:59,108 INFO  L93              Difference]: Finished difference Result 306 states and 451 transitions.
[2024-11-08 19:18:59,113 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-08 19:18:59,113 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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 54
[2024-11-08 19:18:59,114 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 19:18:59,115 INFO  L225             Difference]: With dead ends: 306
[2024-11-08 19:18:59,115 INFO  L226             Difference]: Without dead ends: 183
[2024-11-08 19:18:59,116 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 19:18:59,120 INFO  L432           NwaCegarLoop]: 263 mSDtfsCounter, 0 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 779 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 19:18:59,121 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 779 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 19:18:59,122 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 183 states.
[2024-11-08 19:18:59,133 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183.
[2024-11-08 19:18:59,135 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 183 states, 182 states have (on average 1.478021978021978) internal successors, (269), 182 states have internal predecessors, (269), 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)
[2024-11-08 19:18:59,138 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 269 transitions.
[2024-11-08 19:18:59,142 INFO  L78                 Accepts]: Start accepts. Automaton has 183 states and 269 transitions. Word has length 54
[2024-11-08 19:18:59,142 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 19:18:59,142 INFO  L471      AbstractCegarLoop]: Abstraction has 183 states and 269 transitions.
[2024-11-08 19:18:59,143 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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)
[2024-11-08 19:18:59,143 INFO  L276                IsEmpty]: Start isEmpty. Operand 183 states and 269 transitions.
[2024-11-08 19:18:59,144 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 56
[2024-11-08 19:18:59,144 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 19:18:59,145 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 19:18:59,145 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-08 19:18:59,145 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 19:18:59,146 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:18:59,146 INFO  L85        PathProgramCache]: Analyzing trace with hash -1790871540, now seen corresponding path program 1 times
[2024-11-08 19:18:59,146 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:18:59,150 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349715182]
[2024-11-08 19:18:59,151 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:18:59,151 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:18:59,246 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:18:59,584 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 19:18:59,586 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:18:59,586 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349715182]
[2024-11-08 19:18:59,586 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349715182] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 19:18:59,586 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 19:18:59,587 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-08 19:18:59,587 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995732066]
[2024-11-08 19:18:59,587 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 19:18:59,587 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 19:18:59,588 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:18:59,588 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 19:18:59,588 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-08 19:18:59,589 INFO  L87              Difference]: Start difference. First operand 183 states and 269 transitions. Second operand  has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 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)
[2024-11-08 19:18:59,681 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 19:18:59,682 INFO  L93              Difference]: Finished difference Result 372 states and 544 transitions.
[2024-11-08 19:18:59,682 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-08 19:18:59,682 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 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 55
[2024-11-08 19:18:59,683 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 19:18:59,685 INFO  L225             Difference]: With dead ends: 372
[2024-11-08 19:18:59,686 INFO  L226             Difference]: Without dead ends: 247
[2024-11-08 19:18:59,687 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-11-08 19:18:59,688 INFO  L432           NwaCegarLoop]: 254 mSDtfsCounter, 406 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 758 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 19:18:59,689 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [406 Valid, 758 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 19:18:59,690 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 247 states.
[2024-11-08 19:18:59,697 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 190.
[2024-11-08 19:18:59,697 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 190 states, 189 states have (on average 1.470899470899471) internal successors, (278), 189 states have internal predecessors, (278), 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)
[2024-11-08 19:18:59,698 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 278 transitions.
[2024-11-08 19:18:59,698 INFO  L78                 Accepts]: Start accepts. Automaton has 190 states and 278 transitions. Word has length 55
[2024-11-08 19:18:59,699 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 19:18:59,699 INFO  L471      AbstractCegarLoop]: Abstraction has 190 states and 278 transitions.
[2024-11-08 19:18:59,699 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 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)
[2024-11-08 19:18:59,699 INFO  L276                IsEmpty]: Start isEmpty. Operand 190 states and 278 transitions.
[2024-11-08 19:18:59,700 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 57
[2024-11-08 19:18:59,701 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 19:18:59,701 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 19:18:59,701 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-08 19:18:59,701 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 19:18:59,702 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:18:59,702 INFO  L85        PathProgramCache]: Analyzing trace with hash -1950040025, now seen corresponding path program 1 times
[2024-11-08 19:18:59,702 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:18:59,702 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949914716]
[2024-11-08 19:18:59,702 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:18:59,703 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:18:59,760 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:19:00,106 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 19:19:00,106 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:19:00,106 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949914716]
[2024-11-08 19:19:00,106 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949914716] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 19:19:00,106 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 19:19:00,106 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-11-08 19:19:00,107 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259366536]
[2024-11-08 19:19:00,107 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 19:19:00,107 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-08 19:19:00,107 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:19:00,108 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-08 19:19:00,108 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2024-11-08 19:19:00,108 INFO  L87              Difference]: Start difference. First operand 190 states and 278 transitions. Second operand  has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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)
[2024-11-08 19:19:00,237 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 19:19:00,237 INFO  L93              Difference]: Finished difference Result 384 states and 560 transitions.
[2024-11-08 19:19:00,238 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2024-11-08 19:19:00,238 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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 56
[2024-11-08 19:19:00,238 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 19:19:00,239 INFO  L225             Difference]: With dead ends: 384
[2024-11-08 19:19:00,240 INFO  L226             Difference]: Without dead ends: 259
[2024-11-08 19:19:00,241 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110
[2024-11-08 19:19:00,244 INFO  L432           NwaCegarLoop]: 254 mSDtfsCounter, 438 mSDsluCounter, 851 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 1105 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 19:19:00,245 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 1105 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 19:19:00,246 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 259 states.
[2024-11-08 19:19:00,262 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 192.
[2024-11-08 19:19:00,263 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 192 states, 191 states have (on average 1.4659685863874345) internal successors, (280), 191 states have internal predecessors, (280), 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)
[2024-11-08 19:19:00,263 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 280 transitions.
[2024-11-08 19:19:00,264 INFO  L78                 Accepts]: Start accepts. Automaton has 192 states and 280 transitions. Word has length 56
[2024-11-08 19:19:00,264 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 19:19:00,264 INFO  L471      AbstractCegarLoop]: Abstraction has 192 states and 280 transitions.
[2024-11-08 19:19:00,264 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 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)
[2024-11-08 19:19:00,265 INFO  L276                IsEmpty]: Start isEmpty. Operand 192 states and 280 transitions.
[2024-11-08 19:19:00,265 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 58
[2024-11-08 19:19:00,266 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 19:19:00,266 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 19:19:00,266 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-08 19:19:00,266 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 19:19:00,267 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:19:00,267 INFO  L85        PathProgramCache]: Analyzing trace with hash 923396453, now seen corresponding path program 1 times
[2024-11-08 19:19:00,267 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:19:00,267 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110083113]
[2024-11-08 19:19:00,268 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:19:00,268 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:19:00,309 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:19:00,709 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 19:19:00,709 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:19:00,710 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110083113]
[2024-11-08 19:19:00,710 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110083113] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 19:19:00,710 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 19:19:00,710 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-11-08 19:19:00,710 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513456722]
[2024-11-08 19:19:00,710 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 19:19:00,711 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-08 19:19:00,711 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:19:00,711 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-08 19:19:00,711 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2024-11-08 19:19:00,712 INFO  L87              Difference]: Start difference. First operand 192 states and 280 transitions. Second operand  has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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)
[2024-11-08 19:19:00,869 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 19:19:00,870 INFO  L93              Difference]: Finished difference Result 368 states and 535 transitions.
[2024-11-08 19:19:00,871 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2024-11-08 19:19:00,871 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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 57
[2024-11-08 19:19:00,871 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 19:19:00,875 INFO  L225             Difference]: With dead ends: 368
[2024-11-08 19:19:00,876 INFO  L226             Difference]: Without dead ends: 243
[2024-11-08 19:19:00,876 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110
[2024-11-08 19:19:00,877 INFO  L432           NwaCegarLoop]: 251 mSDtfsCounter, 385 mSDsluCounter, 815 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 1066 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 19:19:00,881 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 1066 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 19:19:00,883 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 243 states.
[2024-11-08 19:19:00,892 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 195.
[2024-11-08 19:19:00,896 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 195 states, 194 states have (on average 1.4639175257731958) internal successors, (284), 194 states have internal predecessors, (284), 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)
[2024-11-08 19:19:00,897 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 284 transitions.
[2024-11-08 19:19:00,897 INFO  L78                 Accepts]: Start accepts. Automaton has 195 states and 284 transitions. Word has length 57
[2024-11-08 19:19:00,898 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 19:19:00,898 INFO  L471      AbstractCegarLoop]: Abstraction has 195 states and 284 transitions.
[2024-11-08 19:19:00,898 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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)
[2024-11-08 19:19:00,898 INFO  L276                IsEmpty]: Start isEmpty. Operand 195 states and 284 transitions.
[2024-11-08 19:19:00,899 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 59
[2024-11-08 19:19:00,899 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 19:19:00,899 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 19:19:00,899 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-08 19:19:00,899 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 19:19:00,900 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:19:00,900 INFO  L85        PathProgramCache]: Analyzing trace with hash -1420858620, now seen corresponding path program 1 times
[2024-11-08 19:19:00,900 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:19:00,900 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905229658]
[2024-11-08 19:19:00,900 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:19:00,901 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:19:00,959 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:19:01,202 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 19:19:01,203 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:19:01,203 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905229658]
[2024-11-08 19:19:01,203 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905229658] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 19:19:01,203 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 19:19:01,204 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 19:19:01,204 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035645313]
[2024-11-08 19:19:01,204 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 19:19:01,204 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 19:19:01,205 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:19:01,208 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 19:19:01,208 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 19:19:01,208 INFO  L87              Difference]: Start difference. First operand 195 states and 284 transitions. Second operand  has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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)
[2024-11-08 19:19:01,239 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 19:19:01,240 INFO  L93              Difference]: Finished difference Result 322 states and 470 transitions.
[2024-11-08 19:19:01,240 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-08 19:19:01,241 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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 58
[2024-11-08 19:19:01,241 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 19:19:01,242 INFO  L225             Difference]: With dead ends: 322
[2024-11-08 19:19:01,242 INFO  L226             Difference]: Without dead ends: 197
[2024-11-08 19:19:01,242 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 19:19:01,243 INFO  L432           NwaCegarLoop]: 263 mSDtfsCounter, 0 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 779 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 19:19:01,244 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 779 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 19:19:01,248 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 197 states.
[2024-11-08 19:19:01,252 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197.
[2024-11-08 19:19:01,253 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 197 states, 196 states have (on average 1.4591836734693877) internal successors, (286), 196 states have internal predecessors, (286), 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)
[2024-11-08 19:19:01,254 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 286 transitions.
[2024-11-08 19:19:01,254 INFO  L78                 Accepts]: Start accepts. Automaton has 197 states and 286 transitions. Word has length 58
[2024-11-08 19:19:01,255 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 19:19:01,258 INFO  L471      AbstractCegarLoop]: Abstraction has 197 states and 286 transitions.
[2024-11-08 19:19:01,258 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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)
[2024-11-08 19:19:01,258 INFO  L276                IsEmpty]: Start isEmpty. Operand 197 states and 286 transitions.
[2024-11-08 19:19:01,259 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 60
[2024-11-08 19:19:01,259 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 19:19:01,260 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 19:19:01,261 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-08 19:19:01,261 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 19:19:01,262 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:19:01,262 INFO  L85        PathProgramCache]: Analyzing trace with hash -188057147, now seen corresponding path program 1 times
[2024-11-08 19:19:01,262 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:19:01,263 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110750298]
[2024-11-08 19:19:01,263 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:19:01,263 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:19:01,310 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:19:01,475 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 19:19:01,476 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:19:01,476 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110750298]
[2024-11-08 19:19:01,476 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110750298] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 19:19:01,477 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 19:19:01,477 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-08 19:19:01,477 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601352147]
[2024-11-08 19:19:01,477 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 19:19:01,478 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 19:19:01,478 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:19:01,478 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 19:19:01,480 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-08 19:19:01,480 INFO  L87              Difference]: Start difference. First operand 197 states and 286 transitions. Second operand  has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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)
[2024-11-08 19:19:01,514 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 19:19:01,514 INFO  L93              Difference]: Finished difference Result 326 states and 474 transitions.
[2024-11-08 19:19:01,515 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-08 19:19:01,516 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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 59
[2024-11-08 19:19:01,516 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 19:19:01,518 INFO  L225             Difference]: With dead ends: 326
[2024-11-08 19:19:01,518 INFO  L226             Difference]: Without dead ends: 199
[2024-11-08 19:19:01,519 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-08 19:19:01,520 INFO  L432           NwaCegarLoop]: 263 mSDtfsCounter, 0 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 779 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 19:19:01,523 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 779 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 19:19:01,524 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 199 states.
[2024-11-08 19:19:01,528 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199.
[2024-11-08 19:19:01,529 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 199 states, 198 states have (on average 1.4545454545454546) internal successors, (288), 198 states have internal predecessors, (288), 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)
[2024-11-08 19:19:01,530 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 288 transitions.
[2024-11-08 19:19:01,530 INFO  L78                 Accepts]: Start accepts. Automaton has 199 states and 288 transitions. Word has length 59
[2024-11-08 19:19:01,530 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 19:19:01,530 INFO  L471      AbstractCegarLoop]: Abstraction has 199 states and 288 transitions.
[2024-11-08 19:19:01,530 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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)
[2024-11-08 19:19:01,531 INFO  L276                IsEmpty]: Start isEmpty. Operand 199 states and 288 transitions.
[2024-11-08 19:19:01,531 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 61
[2024-11-08 19:19:01,531 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 19:19:01,531 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 19:19:01,532 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-08 19:19:01,532 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 19:19:01,532 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:19:01,532 INFO  L85        PathProgramCache]: Analyzing trace with hash -420610755, now seen corresponding path program 1 times
[2024-11-08 19:19:01,533 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:19:01,533 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748054482]
[2024-11-08 19:19:01,533 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:19:01,533 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:19:01,574 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:19:01,730 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 19:19:01,731 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:19:01,731 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748054482]
[2024-11-08 19:19:01,731 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748054482] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 19:19:01,731 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 19:19:01,731 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-08 19:19:01,732 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563010143]
[2024-11-08 19:19:01,732 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 19:19:01,732 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 19:19:01,733 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:19:01,733 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 19:19:01,733 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-08 19:19:01,734 INFO  L87              Difference]: Start difference. First operand 199 states and 288 transitions. Second operand  has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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)
[2024-11-08 19:19:01,772 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 19:19:01,772 INFO  L93              Difference]: Finished difference Result 330 states and 478 transitions.
[2024-11-08 19:19:01,773 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-08 19:19:01,773 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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 60
[2024-11-08 19:19:01,773 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 19:19:01,774 INFO  L225             Difference]: With dead ends: 330
[2024-11-08 19:19:01,774 INFO  L226             Difference]: Without dead ends: 201
[2024-11-08 19:19:01,775 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-08 19:19:01,775 INFO  L432           NwaCegarLoop]: 263 mSDtfsCounter, 0 mSDsluCounter, 773 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1036 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 19:19:01,776 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1036 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 19:19:01,777 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 201 states.
[2024-11-08 19:19:01,780 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201.
[2024-11-08 19:19:01,780 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 201 states, 200 states have (on average 1.45) internal successors, (290), 200 states have internal predecessors, (290), 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)
[2024-11-08 19:19:01,781 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 290 transitions.
[2024-11-08 19:19:01,781 INFO  L78                 Accepts]: Start accepts. Automaton has 201 states and 290 transitions. Word has length 60
[2024-11-08 19:19:01,782 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 19:19:01,782 INFO  L471      AbstractCegarLoop]: Abstraction has 201 states and 290 transitions.
[2024-11-08 19:19:01,782 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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)
[2024-11-08 19:19:01,782 INFO  L276                IsEmpty]: Start isEmpty. Operand 201 states and 290 transitions.
[2024-11-08 19:19:01,783 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 62
[2024-11-08 19:19:01,783 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 19:19:01,783 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 19:19:01,783 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-08 19:19:01,784 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 19:19:01,784 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:19:01,784 INFO  L85        PathProgramCache]: Analyzing trace with hash 1209486348, now seen corresponding path program 1 times
[2024-11-08 19:19:01,784 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:19:01,784 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290236598]
[2024-11-08 19:19:01,785 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:19:01,785 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:19:01,838 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:19:01,964 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 19:19:01,964 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:19:01,964 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290236598]
[2024-11-08 19:19:01,964 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290236598] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 19:19:01,965 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 19:19:01,965 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 19:19:01,965 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366637938]
[2024-11-08 19:19:01,965 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 19:19:01,965 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 19:19:01,965 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:19:01,966 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 19:19:01,966 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 19:19:01,966 INFO  L87              Difference]: Start difference. First operand 201 states and 290 transitions. Second operand  has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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)
[2024-11-08 19:19:01,999 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 19:19:01,999 INFO  L93              Difference]: Finished difference Result 334 states and 482 transitions.
[2024-11-08 19:19:02,000 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-08 19:19:02,000 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 61
[2024-11-08 19:19:02,000 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 19:19:02,001 INFO  L225             Difference]: With dead ends: 334
[2024-11-08 19:19:02,001 INFO  L226             Difference]: Without dead ends: 203
[2024-11-08 19:19:02,002 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 19:19:02,002 INFO  L432           NwaCegarLoop]: 263 mSDtfsCounter, 0 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 779 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 19:19:02,003 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 779 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 19:19:02,007 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 203 states.
[2024-11-08 19:19:02,011 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203.
[2024-11-08 19:19:02,011 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 203 states, 202 states have (on average 1.4455445544554455) internal successors, (292), 202 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)
[2024-11-08 19:19:02,012 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 292 transitions.
[2024-11-08 19:19:02,012 INFO  L78                 Accepts]: Start accepts. Automaton has 203 states and 292 transitions. Word has length 61
[2024-11-08 19:19:02,012 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 19:19:02,012 INFO  L471      AbstractCegarLoop]: Abstraction has 203 states and 292 transitions.
[2024-11-08 19:19:02,013 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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)
[2024-11-08 19:19:02,013 INFO  L276                IsEmpty]: Start isEmpty. Operand 203 states and 292 transitions.
[2024-11-08 19:19:02,013 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 63
[2024-11-08 19:19:02,013 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 19:19:02,013 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 19:19:02,014 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-11-08 19:19:02,014 INFO  L396      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 19:19:02,017 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:19:02,018 INFO  L85        PathProgramCache]: Analyzing trace with hash 1826413174, now seen corresponding path program 1 times
[2024-11-08 19:19:02,018 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:19:02,018 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263337929]
[2024-11-08 19:19:02,018 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:19:02,018 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:19:02,057 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:19:02,179 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 19:19:02,179 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:19:02,180 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263337929]
[2024-11-08 19:19:02,180 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263337929] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 19:19:02,180 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 19:19:02,180 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 19:19:02,180 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301828156]
[2024-11-08 19:19:02,180 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 19:19:02,181 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 19:19:02,181 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:19:02,181 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 19:19:02,182 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 19:19:02,182 INFO  L87              Difference]: Start difference. First operand 203 states and 292 transitions. Second operand  has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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)
[2024-11-08 19:19:02,208 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 19:19:02,208 INFO  L93              Difference]: Finished difference Result 338 states and 486 transitions.
[2024-11-08 19:19:02,211 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-08 19:19:02,211 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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 62
[2024-11-08 19:19:02,211 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 19:19:02,212 INFO  L225             Difference]: With dead ends: 338
[2024-11-08 19:19:02,212 INFO  L226             Difference]: Without dead ends: 205
[2024-11-08 19:19:02,213 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 19:19:02,213 INFO  L432           NwaCegarLoop]: 263 mSDtfsCounter, 0 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 779 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 19:19:02,213 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 779 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 19:19:02,214 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 205 states.
[2024-11-08 19:19:02,218 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205.
[2024-11-08 19:19:02,218 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 205 states, 204 states have (on average 1.4411764705882353) internal successors, (294), 204 states have internal predecessors, (294), 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)
[2024-11-08 19:19:02,219 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 294 transitions.
[2024-11-08 19:19:02,219 INFO  L78                 Accepts]: Start accepts. Automaton has 205 states and 294 transitions. Word has length 62
[2024-11-08 19:19:02,220 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 19:19:02,220 INFO  L471      AbstractCegarLoop]: Abstraction has 205 states and 294 transitions.
[2024-11-08 19:19:02,220 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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)
[2024-11-08 19:19:02,220 INFO  L276                IsEmpty]: Start isEmpty. Operand 205 states and 294 transitions.
[2024-11-08 19:19:02,222 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 63
[2024-11-08 19:19:02,222 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 19:19:02,222 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 19:19:02,222 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-11-08 19:19:02,222 INFO  L396      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 19:19:02,223 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:19:02,224 INFO  L85        PathProgramCache]: Analyzing trace with hash 1880359314, now seen corresponding path program 1 times
[2024-11-08 19:19:02,224 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:19:02,224 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936253081]
[2024-11-08 19:19:02,224 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:19:02,224 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:19:02,273 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:19:02,460 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 19:19:02,461 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:19:02,461 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936253081]
[2024-11-08 19:19:02,461 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936253081] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 19:19:02,461 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 19:19:02,461 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-08 19:19:02,461 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752251437]
[2024-11-08 19:19:02,461 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 19:19:02,462 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 19:19:02,462 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:19:02,462 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 19:19:02,462 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-08 19:19:02,463 INFO  L87              Difference]: Start difference. First operand 205 states and 294 transitions. Second operand  has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 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)
[2024-11-08 19:19:02,517 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 19:19:02,517 INFO  L93              Difference]: Finished difference Result 390 states and 554 transitions.
[2024-11-08 19:19:02,518 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-08 19:19:02,518 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 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 62
[2024-11-08 19:19:02,518 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 19:19:02,519 INFO  L225             Difference]: With dead ends: 390
[2024-11-08 19:19:02,519 INFO  L226             Difference]: Without dead ends: 255
[2024-11-08 19:19:02,520 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56
[2024-11-08 19:19:02,520 INFO  L432           NwaCegarLoop]: 257 mSDtfsCounter, 378 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 765 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 19:19:02,521 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [378 Valid, 765 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 19:19:02,522 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 255 states.
[2024-11-08 19:19:02,525 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 210.
[2024-11-08 19:19:02,526 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 210 states, 209 states have (on average 1.4401913875598087) internal successors, (301), 209 states have internal predecessors, (301), 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)
[2024-11-08 19:19:02,526 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 301 transitions.
[2024-11-08 19:19:02,527 INFO  L78                 Accepts]: Start accepts. Automaton has 210 states and 301 transitions. Word has length 62
[2024-11-08 19:19:02,527 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 19:19:02,527 INFO  L471      AbstractCegarLoop]: Abstraction has 210 states and 301 transitions.
[2024-11-08 19:19:02,527 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 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)
[2024-11-08 19:19:02,527 INFO  L276                IsEmpty]: Start isEmpty. Operand 210 states and 301 transitions.
[2024-11-08 19:19:02,528 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 125
[2024-11-08 19:19:02,528 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 19:19:02,529 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-08 19:19:02,529 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-11-08 19:19:02,529 INFO  L396      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 19:19:02,529 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:19:02,530 INFO  L85        PathProgramCache]: Analyzing trace with hash -2007328699, now seen corresponding path program 1 times
[2024-11-08 19:19:02,530 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:19:02,530 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542952758]
[2024-11-08 19:19:02,530 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:19:02,530 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:19:02,658 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:19:03,058 INFO  L134       CoverageAnalysis]: Checked inductivity of 22 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2024-11-08 19:19:03,059 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:19:03,059 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542952758]
[2024-11-08 19:19:03,059 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542952758] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 19:19:03,059 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 19:19:03,059 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-08 19:19:03,060 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588727571]
[2024-11-08 19:19:03,060 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 19:19:03,060 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 19:19:03,060 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:19:03,061 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 19:19:03,061 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-08 19:19:03,063 INFO  L87              Difference]: Start difference. First operand 210 states and 301 transitions. Second operand  has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 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)
[2024-11-08 19:19:03,094 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 19:19:03,095 INFO  L93              Difference]: Finished difference Result 347 states and 497 transitions.
[2024-11-08 19:19:03,095 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-08 19:19:03,095 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 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 124
[2024-11-08 19:19:03,096 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 19:19:03,097 INFO  L225             Difference]: With dead ends: 347
[2024-11-08 19:19:03,097 INFO  L226             Difference]: Without dead ends: 212
[2024-11-08 19:19:03,098 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-08 19:19:03,099 INFO  L432           NwaCegarLoop]: 265 mSDtfsCounter, 0 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 782 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 19:19:03,099 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 782 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 19:19:03,100 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 212 states.
[2024-11-08 19:19:03,103 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212.
[2024-11-08 19:19:03,103 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 212 states, 211 states have (on average 1.4360189573459716) internal successors, (303), 211 states have internal predecessors, (303), 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)
[2024-11-08 19:19:03,104 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 303 transitions.
[2024-11-08 19:19:03,104 INFO  L78                 Accepts]: Start accepts. Automaton has 212 states and 303 transitions. Word has length 124
[2024-11-08 19:19:03,105 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 19:19:03,105 INFO  L471      AbstractCegarLoop]: Abstraction has 212 states and 303 transitions.
[2024-11-08 19:19:03,105 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 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)
[2024-11-08 19:19:03,105 INFO  L276                IsEmpty]: Start isEmpty. Operand 212 states and 303 transitions.
[2024-11-08 19:19:03,107 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 126
[2024-11-08 19:19:03,107 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 19:19:03,107 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-08 19:19:03,107 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2024-11-08 19:19:03,108 INFO  L396      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 19:19:03,108 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:19:03,108 INFO  L85        PathProgramCache]: Analyzing trace with hash 1935999997, now seen corresponding path program 1 times
[2024-11-08 19:19:03,108 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:19:03,108 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674984233]
[2024-11-08 19:19:03,109 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:19:03,109 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:19:03,224 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:19:03,625 INFO  L134       CoverageAnalysis]: Checked inductivity of 23 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-11-08 19:19:03,627 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:19:03,628 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674984233]
[2024-11-08 19:19:03,628 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674984233] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 19:19:03,628 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 19:19:03,628 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-08 19:19:03,628 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705066314]
[2024-11-08 19:19:03,628 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 19:19:03,629 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 19:19:03,629 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:19:03,630 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 19:19:03,630 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-08 19:19:03,630 INFO  L87              Difference]: Start difference. First operand 212 states and 303 transitions. Second operand  has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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)
[2024-11-08 19:19:03,668 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 19:19:03,668 INFO  L93              Difference]: Finished difference Result 351 states and 501 transitions.
[2024-11-08 19:19:03,669 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-08 19:19:03,669 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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 125
[2024-11-08 19:19:03,669 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 19:19:03,670 INFO  L225             Difference]: With dead ends: 351
[2024-11-08 19:19:03,671 INFO  L226             Difference]: Without dead ends: 214
[2024-11-08 19:19:03,671 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-08 19:19:03,672 INFO  L432           NwaCegarLoop]: 264 mSDtfsCounter, 0 mSDsluCounter, 773 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1037 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 19:19:03,673 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1037 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 19:19:03,674 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 214 states.
[2024-11-08 19:19:03,677 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214.
[2024-11-08 19:19:03,678 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 214 states, 213 states have (on average 1.431924882629108) internal successors, (305), 213 states have internal predecessors, (305), 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)
[2024-11-08 19:19:03,679 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 305 transitions.
[2024-11-08 19:19:03,679 INFO  L78                 Accepts]: Start accepts. Automaton has 214 states and 305 transitions. Word has length 125
[2024-11-08 19:19:03,680 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 19:19:03,680 INFO  L471      AbstractCegarLoop]: Abstraction has 214 states and 305 transitions.
[2024-11-08 19:19:03,680 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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)
[2024-11-08 19:19:03,680 INFO  L276                IsEmpty]: Start isEmpty. Operand 214 states and 305 transitions.
[2024-11-08 19:19:03,681 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 127
[2024-11-08 19:19:03,681 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 19:19:03,681 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-08 19:19:03,682 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2024-11-08 19:19:03,682 INFO  L396      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 19:19:03,682 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:19:03,682 INFO  L85        PathProgramCache]: Analyzing trace with hash 1616822284, now seen corresponding path program 1 times
[2024-11-08 19:19:03,683 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:19:03,683 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112535802]
[2024-11-08 19:19:03,683 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:19:03,683 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:19:04,007 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:19:04,744 INFO  L134       CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 19:19:04,745 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:19:04,745 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112535802]
[2024-11-08 19:19:04,745 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112535802] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 19:19:04,745 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 19:19:04,745 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-11-08 19:19:04,746 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277101899]
[2024-11-08 19:19:04,746 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 19:19:04,746 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-08 19:19:04,746 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:19:04,747 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-08 19:19:04,747 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2024-11-08 19:19:04,747 INFO  L87              Difference]: Start difference. First operand 214 states and 305 transitions. Second operand  has 8 states, 8 states have (on average 15.75) internal successors, (126), 8 states have internal predecessors, (126), 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)
[2024-11-08 19:19:04,865 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 19:19:04,865 INFO  L93              Difference]: Finished difference Result 361 states and 514 transitions.
[2024-11-08 19:19:04,866 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-11-08 19:19:04,866 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 15.75) internal successors, (126), 8 states have internal predecessors, (126), 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 126
[2024-11-08 19:19:04,866 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 19:19:04,867 INFO  L225             Difference]: With dead ends: 361
[2024-11-08 19:19:04,867 INFO  L226             Difference]: Without dead ends: 222
[2024-11-08 19:19:04,868 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156
[2024-11-08 19:19:04,868 INFO  L432           NwaCegarLoop]: 250 mSDtfsCounter, 220 mSDsluCounter, 993 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 1243 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 19:19:04,868 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 1243 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 19:19:04,869 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 222 states.
[2024-11-08 19:19:04,872 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 219.
[2024-11-08 19:19:04,872 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 219 states, 218 states have (on average 1.4220183486238531) internal successors, (310), 218 states have internal predecessors, (310), 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)
[2024-11-08 19:19:04,873 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 310 transitions.
[2024-11-08 19:19:04,873 INFO  L78                 Accepts]: Start accepts. Automaton has 219 states and 310 transitions. Word has length 126
[2024-11-08 19:19:04,873 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 19:19:04,873 INFO  L471      AbstractCegarLoop]: Abstraction has 219 states and 310 transitions.
[2024-11-08 19:19:04,873 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 15.75) internal successors, (126), 8 states have internal predecessors, (126), 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)
[2024-11-08 19:19:04,873 INFO  L276                IsEmpty]: Start isEmpty. Operand 219 states and 310 transitions.
[2024-11-08 19:19:04,874 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 128
[2024-11-08 19:19:04,874 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 19:19:04,874 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-08 19:19:04,874 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2024-11-08 19:19:04,875 INFO  L396      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 19:19:04,875 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:19:04,875 INFO  L85        PathProgramCache]: Analyzing trace with hash 1926656290, now seen corresponding path program 1 times
[2024-11-08 19:19:04,875 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:19:04,875 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317785306]
[2024-11-08 19:19:04,875 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:19:04,875 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:19:04,978 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:19:05,294 INFO  L134       CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 19:19:05,294 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:19:05,294 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317785306]
[2024-11-08 19:19:05,295 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317785306] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 19:19:05,295 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 19:19:05,295 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-08 19:19:05,295 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119500232]
[2024-11-08 19:19:05,295 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 19:19:05,296 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 19:19:05,296 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:19:05,296 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 19:19:05,296 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-08 19:19:05,297 INFO  L87              Difference]: Start difference. First operand 219 states and 310 transitions. Second operand  has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 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)
[2024-11-08 19:19:05,352 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 19:19:05,352 INFO  L93              Difference]: Finished difference Result 397 states and 555 transitions.
[2024-11-08 19:19:05,352 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-08 19:19:05,353 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 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 127
[2024-11-08 19:19:05,353 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 19:19:05,354 INFO  L225             Difference]: With dead ends: 397
[2024-11-08 19:19:05,354 INFO  L226             Difference]: Without dead ends: 253
[2024-11-08 19:19:05,354 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2024-11-08 19:19:05,355 INFO  L432           NwaCegarLoop]: 255 mSDtfsCounter, 318 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 758 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 19:19:05,355 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 758 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 19:19:05,356 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 253 states.
[2024-11-08 19:19:05,359 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 253.
[2024-11-08 19:19:05,360 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 253 states, 252 states have (on average 1.3928571428571428) internal successors, (351), 252 states have internal predecessors, (351), 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)
[2024-11-08 19:19:05,360 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 351 transitions.
[2024-11-08 19:19:05,361 INFO  L78                 Accepts]: Start accepts. Automaton has 253 states and 351 transitions. Word has length 127
[2024-11-08 19:19:05,361 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 19:19:05,361 INFO  L471      AbstractCegarLoop]: Abstraction has 253 states and 351 transitions.
[2024-11-08 19:19:05,361 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 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)
[2024-11-08 19:19:05,361 INFO  L276                IsEmpty]: Start isEmpty. Operand 253 states and 351 transitions.
[2024-11-08 19:19:05,362 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 128
[2024-11-08 19:19:05,362 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 19:19:05,362 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-08 19:19:05,363 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2024-11-08 19:19:05,363 INFO  L396      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 19:19:05,363 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:19:05,363 INFO  L85        PathProgramCache]: Analyzing trace with hash 860795419, now seen corresponding path program 1 times
[2024-11-08 19:19:05,363 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:19:05,364 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46842794]
[2024-11-08 19:19:05,364 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:19:05,364 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:19:05,466 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:19:05,833 INFO  L134       CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 19:19:05,833 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:19:05,833 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46842794]
[2024-11-08 19:19:05,834 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46842794] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 19:19:05,834 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 19:19:05,834 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-08 19:19:05,834 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800723719]
[2024-11-08 19:19:05,834 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 19:19:05,835 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 19:19:05,835 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:19:05,835 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 19:19:05,836 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-08 19:19:05,836 INFO  L87              Difference]: Start difference. First operand 253 states and 351 transitions. Second operand  has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 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)
[2024-11-08 19:19:06,053 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 19:19:06,054 INFO  L93              Difference]: Finished difference Result 529 states and 739 transitions.
[2024-11-08 19:19:06,054 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-11-08 19:19:06,054 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 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 127
[2024-11-08 19:19:06,055 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 19:19:06,056 INFO  L225             Difference]: With dead ends: 529
[2024-11-08 19:19:06,056 INFO  L226             Difference]: Without dead ends: 257
[2024-11-08 19:19:06,057 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72
[2024-11-08 19:19:06,057 INFO  L432           NwaCegarLoop]: 310 mSDtfsCounter, 99 mSDsluCounter, 1088 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 1398 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-08 19:19:06,058 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 1398 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-08 19:19:06,058 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 257 states.
[2024-11-08 19:19:06,062 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 255.
[2024-11-08 19:19:06,063 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 255 states, 254 states have (on average 1.389763779527559) internal successors, (353), 254 states have internal predecessors, (353), 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)
[2024-11-08 19:19:06,064 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 353 transitions.
[2024-11-08 19:19:06,064 INFO  L78                 Accepts]: Start accepts. Automaton has 255 states and 353 transitions. Word has length 127
[2024-11-08 19:19:06,064 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 19:19:06,064 INFO  L471      AbstractCegarLoop]: Abstraction has 255 states and 353 transitions.
[2024-11-08 19:19:06,065 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 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)
[2024-11-08 19:19:06,065 INFO  L276                IsEmpty]: Start isEmpty. Operand 255 states and 353 transitions.
[2024-11-08 19:19:06,066 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 129
[2024-11-08 19:19:06,066 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 19:19:06,066 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-08 19:19:06,066 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2024-11-08 19:19:06,067 INFO  L396      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 19:19:06,067 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:19:06,067 INFO  L85        PathProgramCache]: Analyzing trace with hash 2075340069, now seen corresponding path program 1 times
[2024-11-08 19:19:06,068 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:19:06,068 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924383174]
[2024-11-08 19:19:06,068 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:19:06,068 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:19:06,369 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:19:06,932 INFO  L134       CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 19:19:06,932 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:19:06,932 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924383174]
[2024-11-08 19:19:06,933 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924383174] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 19:19:06,933 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 19:19:06,933 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-11-08 19:19:06,933 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406726193]
[2024-11-08 19:19:06,933 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 19:19:06,933 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-08 19:19:06,933 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:19:06,934 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-08 19:19:06,934 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2024-11-08 19:19:06,934 INFO  L87              Difference]: Start difference. First operand 255 states and 353 transitions. Second operand  has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 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)
[2024-11-08 19:19:07,035 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 19:19:07,035 INFO  L93              Difference]: Finished difference Result 443 states and 612 transitions.
[2024-11-08 19:19:07,036 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2024-11-08 19:19:07,036 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 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 128
[2024-11-08 19:19:07,036 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 19:19:07,037 INFO  L225             Difference]: With dead ends: 443
[2024-11-08 19:19:07,037 INFO  L226             Difference]: Without dead ends: 297
[2024-11-08 19:19:07,038 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110
[2024-11-08 19:19:07,038 INFO  L432           NwaCegarLoop]: 255 mSDtfsCounter, 391 mSDsluCounter, 816 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 1071 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 19:19:07,039 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 1071 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 19:19:07,039 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 297 states.
[2024-11-08 19:19:07,043 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 283.
[2024-11-08 19:19:07,044 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 283 states, 282 states have (on average 1.375886524822695) internal successors, (388), 282 states have internal predecessors, (388), 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)
[2024-11-08 19:19:07,044 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 388 transitions.
[2024-11-08 19:19:07,045 INFO  L78                 Accepts]: Start accepts. Automaton has 283 states and 388 transitions. Word has length 128
[2024-11-08 19:19:07,045 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 19:19:07,045 INFO  L471      AbstractCegarLoop]: Abstraction has 283 states and 388 transitions.
[2024-11-08 19:19:07,045 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 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)
[2024-11-08 19:19:07,045 INFO  L276                IsEmpty]: Start isEmpty. Operand 283 states and 388 transitions.
[2024-11-08 19:19:07,046 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 130
[2024-11-08 19:19:07,046 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 19:19:07,047 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-08 19:19:07,047 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2024-11-08 19:19:07,047 INFO  L396      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 19:19:07,047 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:19:07,048 INFO  L85        PathProgramCache]: Analyzing trace with hash -1593329452, now seen corresponding path program 1 times
[2024-11-08 19:19:07,048 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:19:07,048 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057624410]
[2024-11-08 19:19:07,048 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:19:07,048 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:19:07,147 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:19:07,475 INFO  L134       CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 19:19:07,476 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:19:07,476 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057624410]
[2024-11-08 19:19:07,476 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057624410] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 19:19:07,476 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 19:19:07,476 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-08 19:19:07,477 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109429223]
[2024-11-08 19:19:07,477 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 19:19:07,477 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 19:19:07,477 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:19:07,478 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 19:19:07,478 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-11-08 19:19:07,478 INFO  L87              Difference]: Start difference. First operand 283 states and 388 transitions. Second operand  has 6 states, 6 states have (on average 21.5) internal successors, (129), 6 states have internal predecessors, (129), 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)
[2024-11-08 19:19:07,732 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 19:19:07,732 INFO  L93              Difference]: Finished difference Result 433 states and 598 transitions.
[2024-11-08 19:19:07,732 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-08 19:19:07,733 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 21.5) internal successors, (129), 6 states have internal predecessors, (129), 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 129
[2024-11-08 19:19:07,733 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 19:19:07,734 INFO  L225             Difference]: With dead ends: 433
[2024-11-08 19:19:07,734 INFO  L226             Difference]: Without dead ends: 287
[2024-11-08 19:19:07,734 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-11-08 19:19:07,735 INFO  L432           NwaCegarLoop]: 176 mSDtfsCounter, 262 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-08 19:19:07,735 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 692 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-08 19:19:07,736 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 287 states.
[2024-11-08 19:19:07,739 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 285.
[2024-11-08 19:19:07,740 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 285 states, 284 states have (on average 1.3732394366197183) internal successors, (390), 284 states have internal predecessors, (390), 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)
[2024-11-08 19:19:07,740 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 390 transitions.
[2024-11-08 19:19:07,741 INFO  L78                 Accepts]: Start accepts. Automaton has 285 states and 390 transitions. Word has length 129
[2024-11-08 19:19:07,741 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 19:19:07,741 INFO  L471      AbstractCegarLoop]: Abstraction has 285 states and 390 transitions.
[2024-11-08 19:19:07,741 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 21.5) internal successors, (129), 6 states have internal predecessors, (129), 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)
[2024-11-08 19:19:07,741 INFO  L276                IsEmpty]: Start isEmpty. Operand 285 states and 390 transitions.
[2024-11-08 19:19:07,742 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 130
[2024-11-08 19:19:07,742 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 19:19:07,743 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-08 19:19:07,743 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2024-11-08 19:19:07,743 INFO  L396      AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 19:19:07,743 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:19:07,744 INFO  L85        PathProgramCache]: Analyzing trace with hash -755647984, now seen corresponding path program 1 times
[2024-11-08 19:19:07,744 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:19:07,744 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085817263]
[2024-11-08 19:19:07,744 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:19:07,744 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:19:07,850 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:19:08,202 INFO  L134       CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 19:19:08,203 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:19:08,203 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085817263]
[2024-11-08 19:19:08,203 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085817263] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 19:19:08,203 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 19:19:08,203 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-08 19:19:08,203 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269784426]
[2024-11-08 19:19:08,203 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 19:19:08,204 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 19:19:08,204 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:19:08,205 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 19:19:08,205 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-08 19:19:08,206 INFO  L87              Difference]: Start difference. First operand 285 states and 390 transitions. Second operand  has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 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)
[2024-11-08 19:19:08,342 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 19:19:08,343 INFO  L93              Difference]: Finished difference Result 451 states and 620 transitions.
[2024-11-08 19:19:08,343 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-08 19:19:08,343 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 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 129
[2024-11-08 19:19:08,344 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 19:19:08,345 INFO  L225             Difference]: With dead ends: 451
[2024-11-08 19:19:08,345 INFO  L226             Difference]: Without dead ends: 289
[2024-11-08 19:19:08,345 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-08 19:19:08,346 INFO  L432           NwaCegarLoop]: 262 mSDtfsCounter, 0 mSDsluCounter, 684 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 19:19:08,346 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 946 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 19:19:08,347 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 289 states.
[2024-11-08 19:19:08,351 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 289.
[2024-11-08 19:19:08,351 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 289 states, 288 states have (on average 1.3680555555555556) internal successors, (394), 288 states have internal predecessors, (394), 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)
[2024-11-08 19:19:08,352 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 394 transitions.
[2024-11-08 19:19:08,352 INFO  L78                 Accepts]: Start accepts. Automaton has 289 states and 394 transitions. Word has length 129
[2024-11-08 19:19:08,352 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 19:19:08,353 INFO  L471      AbstractCegarLoop]: Abstraction has 289 states and 394 transitions.
[2024-11-08 19:19:08,353 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 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)
[2024-11-08 19:19:08,353 INFO  L276                IsEmpty]: Start isEmpty. Operand 289 states and 394 transitions.
[2024-11-08 19:19:08,354 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 131
[2024-11-08 19:19:08,354 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 19:19:08,354 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-08 19:19:08,355 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2024-11-08 19:19:08,355 INFO  L396      AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 19:19:08,356 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:19:08,356 INFO  L85        PathProgramCache]: Analyzing trace with hash 844845758, now seen corresponding path program 1 times
[2024-11-08 19:19:08,356 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:19:08,357 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204494033]
[2024-11-08 19:19:08,357 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:19:08,357 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:19:08,574 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:19:08,866 INFO  L134       CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 19:19:08,866 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:19:08,866 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204494033]
[2024-11-08 19:19:08,866 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204494033] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 19:19:08,867 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 19:19:08,867 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-08 19:19:08,867 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362325018]
[2024-11-08 19:19:08,867 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 19:19:08,867 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 19:19:08,868 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:19:08,870 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 19:19:08,870 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-08 19:19:08,870 INFO  L87              Difference]: Start difference. First operand 289 states and 394 transitions. Second operand  has 5 states, 5 states have (on average 26.0) internal successors, (130), 5 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)
[2024-11-08 19:19:09,053 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 19:19:09,054 INFO  L93              Difference]: Finished difference Result 439 states and 602 transitions.
[2024-11-08 19:19:09,054 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-08 19:19:09,054 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 26.0) internal successors, (130), 5 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 130
[2024-11-08 19:19:09,055 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 19:19:09,056 INFO  L225             Difference]: With dead ends: 439
[2024-11-08 19:19:09,056 INFO  L226             Difference]: Without dead ends: 289
[2024-11-08 19:19:09,057 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2024-11-08 19:19:09,057 INFO  L432           NwaCegarLoop]: 173 mSDtfsCounter, 255 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-08 19:19:09,057 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 346 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-08 19:19:09,059 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 289 states.
[2024-11-08 19:19:09,063 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 289.
[2024-11-08 19:19:09,064 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 289 states, 288 states have (on average 1.3645833333333333) internal successors, (393), 288 states have internal predecessors, (393), 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)
[2024-11-08 19:19:09,065 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 393 transitions.
[2024-11-08 19:19:09,065 INFO  L78                 Accepts]: Start accepts. Automaton has 289 states and 393 transitions. Word has length 130
[2024-11-08 19:19:09,065 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 19:19:09,066 INFO  L471      AbstractCegarLoop]: Abstraction has 289 states and 393 transitions.
[2024-11-08 19:19:09,066 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 26.0) internal successors, (130), 5 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)
[2024-11-08 19:19:09,066 INFO  L276                IsEmpty]: Start isEmpty. Operand 289 states and 393 transitions.
[2024-11-08 19:19:09,067 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 132
[2024-11-08 19:19:09,067 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 19:19:09,068 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-08 19:19:09,068 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19
[2024-11-08 19:19:09,068 INFO  L396      AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 19:19:09,069 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:19:09,069 INFO  L85        PathProgramCache]: Analyzing trace with hash -1564721139, now seen corresponding path program 1 times
[2024-11-08 19:19:09,069 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:19:09,069 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739016479]
[2024-11-08 19:19:09,069 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:19:09,069 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:19:09,319 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:19:09,777 INFO  L134       CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 19:19:09,777 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:19:09,777 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739016479]
[2024-11-08 19:19:09,778 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739016479] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 19:19:09,778 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 19:19:09,778 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 19:19:09,778 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651651894]
[2024-11-08 19:19:09,778 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 19:19:09,779 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 19:19:09,779 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:19:09,779 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 19:19:09,779 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 19:19:09,779 INFO  L87              Difference]: Start difference. First operand 289 states and 393 transitions. Second operand  has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 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)
[2024-11-08 19:19:09,959 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 19:19:09,959 INFO  L93              Difference]: Finished difference Result 439 states and 600 transitions.
[2024-11-08 19:19:09,960 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-08 19:19:09,960 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 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 131
[2024-11-08 19:19:09,960 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 19:19:09,961 INFO  L225             Difference]: With dead ends: 439
[2024-11-08 19:19:09,961 INFO  L226             Difference]: Without dead ends: 289
[2024-11-08 19:19:09,962 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-08 19:19:09,962 INFO  L432           NwaCegarLoop]: 173 mSDtfsCounter, 186 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-08 19:19:09,962 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 345 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-08 19:19:09,963 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 289 states.
[2024-11-08 19:19:09,969 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 289.
[2024-11-08 19:19:09,970 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 289 states, 288 states have (on average 1.3611111111111112) internal successors, (392), 288 states have internal predecessors, (392), 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)
[2024-11-08 19:19:09,970 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 392 transitions.
[2024-11-08 19:19:09,971 INFO  L78                 Accepts]: Start accepts. Automaton has 289 states and 392 transitions. Word has length 131
[2024-11-08 19:19:09,971 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 19:19:09,972 INFO  L471      AbstractCegarLoop]: Abstraction has 289 states and 392 transitions.
[2024-11-08 19:19:09,972 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 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)
[2024-11-08 19:19:09,972 INFO  L276                IsEmpty]: Start isEmpty. Operand 289 states and 392 transitions.
[2024-11-08 19:19:09,973 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 133
[2024-11-08 19:19:09,973 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 19:19:09,973 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-08 19:19:09,973 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20
[2024-11-08 19:19:09,974 INFO  L396      AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 19:19:09,974 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:19:09,974 INFO  L85        PathProgramCache]: Analyzing trace with hash -939340869, now seen corresponding path program 1 times
[2024-11-08 19:19:09,974 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:19:09,974 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894444550]
[2024-11-08 19:19:09,975 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:19:09,975 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:19:10,252 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:19:11,033 INFO  L134       CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 19:19:11,033 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:19:11,033 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894444550]
[2024-11-08 19:19:11,034 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894444550] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 19:19:11,034 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [187935048]
[2024-11-08 19:19:11,034 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:19:11,034 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 19:19:11,034 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-08 19:19:11,036 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)
[2024-11-08 19:19:11,038 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-08 19:19:11,497 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:19:11,511 INFO  L255         TraceCheckSpWp]: Trace formula consists of 826 conjuncts, 40 conjuncts are in the unsatisfiable core
[2024-11-08 19:19:11,532 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 19:19:11,959 INFO  L134       CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 19:19:11,960 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 19:19:12,478 INFO  L134       CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 19:19:12,478 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [187935048] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 19:19:12,479 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 19:19:12,479 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 23
[2024-11-08 19:19:12,479 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452305193]
[2024-11-08 19:19:12,479 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 19:19:12,480 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 23 states
[2024-11-08 19:19:12,480 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:19:12,481 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants.
[2024-11-08 19:19:12,481 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506
[2024-11-08 19:19:12,481 INFO  L87              Difference]: Start difference. First operand 289 states and 392 transitions. Second operand  has 23 states, 23 states have (on average 15.826086956521738) internal successors, (364), 23 states have internal predecessors, (364), 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)
[2024-11-08 19:19:13,737 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 19:19:13,738 INFO  L93              Difference]: Finished difference Result 985 states and 1329 transitions.
[2024-11-08 19:19:13,738 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. 
[2024-11-08 19:19:13,738 INFO  L78                 Accepts]: Start accepts. Automaton has  has 23 states, 23 states have (on average 15.826086956521738) internal successors, (364), 23 states have internal predecessors, (364), 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 132
[2024-11-08 19:19:13,739 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 19:19:13,741 INFO  L225             Difference]: With dead ends: 985
[2024-11-08 19:19:13,742 INFO  L226             Difference]: Without dead ends: 767
[2024-11-08 19:19:13,743 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 638 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=425, Invalid=2881, Unknown=0, NotChecked=0, Total=3306
[2024-11-08 19:19:13,744 INFO  L432           NwaCegarLoop]: 279 mSDtfsCounter, 1538 mSDsluCounter, 3731 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1538 SdHoareTripleChecker+Valid, 4010 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-08 19:19:13,744 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1538 Valid, 4010 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-08 19:19:13,745 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 767 states.
[2024-11-08 19:19:13,754 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 569.
[2024-11-08 19:19:13,756 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 569 states, 568 states have (on average 1.3785211267605635) internal successors, (783), 568 states have internal predecessors, (783), 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)
[2024-11-08 19:19:13,757 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 783 transitions.
[2024-11-08 19:19:13,757 INFO  L78                 Accepts]: Start accepts. Automaton has 569 states and 783 transitions. Word has length 132
[2024-11-08 19:19:13,758 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 19:19:13,758 INFO  L471      AbstractCegarLoop]: Abstraction has 569 states and 783 transitions.
[2024-11-08 19:19:13,758 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 23 states, 23 states have (on average 15.826086956521738) internal successors, (364), 23 states have internal predecessors, (364), 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)
[2024-11-08 19:19:13,758 INFO  L276                IsEmpty]: Start isEmpty. Operand 569 states and 783 transitions.
[2024-11-08 19:19:13,760 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 135
[2024-11-08 19:19:13,760 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 19:19:13,760 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-11-08 19:19:13,782 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-08 19:19:13,964 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,SelfDestructingSolverStorable21
[2024-11-08 19:19:13,965 INFO  L396      AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 19:19:13,965 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 19:19:13,965 INFO  L85        PathProgramCache]: Analyzing trace with hash -558065957, now seen corresponding path program 1 times
[2024-11-08 19:19:13,966 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 19:19:13,966 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564651368]
[2024-11-08 19:19:13,966 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:19:13,966 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 19:19:14,234 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:19:14,678 INFO  L134       CoverageAnalysis]: Checked inductivity of 24 backedges. 17 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 19:19:14,678 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 19:19:14,678 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564651368]
[2024-11-08 19:19:14,679 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564651368] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 19:19:14,679 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1532675511]
[2024-11-08 19:19:14,679 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 19:19:14,680 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 19:19:14,680 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-08 19:19:14,682 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)
[2024-11-08 19:19:14,683 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-08 19:19:15,115 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 19:19:15,123 INFO  L255         TraceCheckSpWp]: Trace formula consists of 828 conjuncts, 108 conjuncts are in the unsatisfiable core
[2024-11-08 19:19:15,135 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 19:19:16,777 INFO  L134       CoverageAnalysis]: Checked inductivity of 24 backedges. 12 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 19:19:16,780 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 19:19:19,385 INFO  L134       CoverageAnalysis]: Checked inductivity of 24 backedges. 7 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 19:19:19,386 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1532675511] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 19:19:19,386 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 19:19:19,386 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 21, 24] total 47
[2024-11-08 19:19:19,386 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483564967]
[2024-11-08 19:19:19,387 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 19:19:19,387 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 47 states
[2024-11-08 19:19:19,387 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 19:19:19,389 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants.
[2024-11-08 19:19:19,389 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=1955, Unknown=0, NotChecked=0, Total=2162
[2024-11-08 19:19:19,390 INFO  L87              Difference]: Start difference. First operand 569 states and 783 transitions. Second operand  has 47 states, 47 states have (on average 8.085106382978724) internal successors, (380), 47 states have internal predecessors, (380), 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)
[2024-11-08 19:19:24,384 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 19:19:24,384 INFO  L93              Difference]: Finished difference Result 1230 states and 1675 transitions.
[2024-11-08 19:19:24,384 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. 
[2024-11-08 19:19:24,384 INFO  L78                 Accepts]: Start accepts. Automaton has  has 47 states, 47 states have (on average 8.085106382978724) internal successors, (380), 47 states have internal predecessors, (380), 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 134
[2024-11-08 19:19:24,385 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 19:19:24,385 INFO  L225             Difference]: With dead ends: 1230
[2024-11-08 19:19:24,385 INFO  L226             Difference]: Without dead ends: 0
[2024-11-08 19:19:24,393 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 227 SyntacticMatches, 1 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4018 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=1341, Invalid=13179, Unknown=0, NotChecked=0, Total=14520
[2024-11-08 19:19:24,393 INFO  L432           NwaCegarLoop]: 170 mSDtfsCounter, 1961 mSDsluCounter, 4538 mSDsCounter, 0 mSdLazyCounter, 3649 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1961 SdHoareTripleChecker+Valid, 4708 SdHoareTripleChecker+Invalid, 3682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 3649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time
[2024-11-08 19:19:24,393 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1961 Valid, 4708 Invalid, 3682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 3649 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time]
[2024-11-08 19:19:24,394 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-11-08 19:19:24,394 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-11-08 19:19:24,394 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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)
[2024-11-08 19:19:24,394 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-11-08 19:19:24,394 INFO  L78                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 134
[2024-11-08 19:19:24,394 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 19:19:24,394 INFO  L471      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-11-08 19:19:24,395 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 47 states, 47 states have (on average 8.085106382978724) internal successors, (380), 47 states have internal predecessors, (380), 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)
[2024-11-08 19:19:24,395 INFO  L276                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-11-08 19:19:24,395 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2024-11-08 19:19:24,397 INFO  L782   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-11-08 19:19:24,415 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-08 19:19:24,602 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,SelfDestructingSolverStorable22
[2024-11-08 19:19:24,605 INFO  L407         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 19:19:24,608 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2024-11-08 19:19:24,718 INFO  L170   ceAbstractionStarter]: Computing trace abstraction results
[2024-11-08 19:19:24,733 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 07:19:24 BoogieIcfgContainer
[2024-11-08 19:19:24,734 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-08 19:19:24,734 INFO  L112        PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-08 19:19:24,735 INFO  L270        PluginConnector]: Initializing Witness Printer...
[2024-11-08 19:19:24,735 INFO  L274        PluginConnector]: Witness Printer initialized
[2024-11-08 19:19:24,735 INFO  L184        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:18:57" (3/4) ...
[2024-11-08 19:19:24,737 INFO  L142         WitnessPrinter]: Generating witness for correct program
[2024-11-08 19:19:24,756 INFO  L925   BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges
[2024-11-08 19:19:24,757 INFO  L925   BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges
[2024-11-08 19:19:24,758 INFO  L925   BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2024-11-08 19:19:24,759 INFO  L925   BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2024-11-08 19:19:24,760 INFO  L925   BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2024-11-08 19:19:24,901 INFO  L149         WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml
[2024-11-08 19:19:24,902 INFO  L149         WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml
[2024-11-08 19:19:24,902 INFO  L131        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-08 19:19:24,906 INFO  L158              Benchmark]: Toolchain (without parser) took 29261.34ms. Allocated memory was 176.2MB in the beginning and 870.3MB in the end (delta: 694.2MB). Free memory was 144.0MB in the beginning and 416.7MB in the end (delta: -272.6MB). Peak memory consumption was 423.2MB. Max. memory is 16.1GB.
[2024-11-08 19:19:24,906 INFO  L158              Benchmark]: CDTParser took 0.11ms. Allocated memory is still 176.2MB. Free memory is still 145.2MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-08 19:19:24,907 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 463.35ms. Allocated memory is still 176.2MB. Free memory was 144.0MB in the beginning and 119.6MB in the end (delta: 24.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB.
[2024-11-08 19:19:24,907 INFO  L158              Benchmark]: Boogie Procedure Inliner took 127.18ms. Allocated memory is still 176.2MB. Free memory was 119.6MB in the beginning and 102.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-11-08 19:19:24,907 INFO  L158              Benchmark]: Boogie Preprocessor took 181.05ms. Allocated memory is still 176.2MB. Free memory was 102.9MB in the beginning and 93.0MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2024-11-08 19:19:24,907 INFO  L158              Benchmark]: RCFGBuilder took 1243.92ms. Allocated memory is still 176.2MB. Free memory was 93.0MB in the beginning and 83.1MB in the end (delta: 9.9MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB.
[2024-11-08 19:19:24,907 INFO  L158              Benchmark]: TraceAbstraction took 27070.59ms. Allocated memory was 176.2MB in the beginning and 870.3MB in the end (delta: 694.2MB). Free memory was 82.4MB in the beginning and 430.3MB in the end (delta: -347.9MB). Peak memory consumption was 347.8MB. Max. memory is 16.1GB.
[2024-11-08 19:19:24,907 INFO  L158              Benchmark]: Witness Printer took 167.22ms. Allocated memory is still 870.3MB. Free memory was 430.3MB in the beginning and 416.7MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
[2024-11-08 19:19:24,909 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.11ms. Allocated memory is still 176.2MB. Free memory is still 145.2MB. There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 463.35ms. Allocated memory is still 176.2MB. Free memory was 144.0MB in the beginning and 119.6MB in the end (delta: 24.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB.
 * Boogie Procedure Inliner took 127.18ms. Allocated memory is still 176.2MB. Free memory was 119.6MB in the beginning and 102.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
 * Boogie Preprocessor took 181.05ms. Allocated memory is still 176.2MB. Free memory was 102.9MB in the beginning and 93.0MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
 * RCFGBuilder took 1243.92ms. Allocated memory is still 176.2MB. Free memory was 93.0MB in the beginning and 83.1MB in the end (delta: 9.9MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB.
 * TraceAbstraction took 27070.59ms. Allocated memory was 176.2MB in the beginning and 870.3MB in the end (delta: 694.2MB). Free memory was 82.4MB in the beginning and 430.3MB in the end (delta: -347.9MB). Peak memory consumption was 347.8MB. Max. memory is 16.1GB.
 * Witness Printer took 167.22ms. Allocated memory is still 870.3MB. Free memory was 430.3MB in the beginning and 416.7MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - PositiveResult [Line: 21]: a call to reach_error is unreachable
    For all program executions holds that a call to reach_error is unreachable at this location
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 1 procedures, 182 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 26.9s, OverallIterations: 23, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 8.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6837 SdHoareTripleChecker+Valid, 3.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6837 mSDsluCounter, 26744 SdHoareTripleChecker+Invalid, 3.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21055 mSDsCounter, 61 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5757 IncrementalHoareTripleChecker+Invalid, 5818 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 61 mSolverCounterUnsat, 5689 mSDtfsCounter, 5757 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 804 GetRequests, 531 SyntacticMatches, 1 SemanticMatches, 272 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4693 ImplicationChecksByTransitivity, 5.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=569occurred in iteration=22, InterpolantAutomatonStates: 225, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 23 MinimizatonAttempts, 436 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.6s SatisfiabilityAnalysisTime, 13.5s InterpolantComputationTime, 2445 NumberOfCodeBlocks, 2445 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 2684 ConstructedInterpolants, 0 QuantifiedInterpolants, 13114 SizeOfPredicates, 17 NumberOfNonLiveVariables, 1654 ConjunctsInSsa, 148 ConjunctsInUnsatCore, 27 InterpolantComputations, 21 PerfectInterpolantSequences, 309/381 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
  - AllSpecificationsHoldResult: All specifications hold
    1 specifications checked. All of them hold
  - InvariantResult [Line: 104]: Loop Invariant
    Derived loop invariant: (((((var_5 == 0) && (var_13 == 1)) && (mask_SORT_1 == 0)) || ((((var_5 == 0) && ((((short) state_14 + 1) % 256) <= 0)) && (var_13 == 1)) && (mask_SORT_1 == 1))) || (((((((((((state_18 == 0) && (state_29 == 0)) && (var_5 == 0)) && ((((short) state_45 + 2) % 256) != 0)) && (state_22 == 0)) && (var_13 == 1)) && (state_33 == 0)) && (state_6 == 0)) && (mask_SORT_1 == 1)) && (state_14 == 1)) && (state_9 == 0)))
RESULT: Ultimate proved your program to be correct!
[2024-11-08 19:19:24,941 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0
Received shutdown request...
--- End real Ultimate output ---

Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE