./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-52.i --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version 803cd42f
Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-52.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 65e290fb975399bc2cc283273eaab9fa300db5fe57e6fb279b59522887532a83
--- Real Ultimate output ---
This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m
[2024-11-22 09:01:49,714 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-22 09:01:49,773 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-22 09:01:49,777 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-22 09:01:49,780 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-22 09:01:49,805 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-22 09:01:49,806 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-22 09:01:49,806 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-22 09:01:49,822 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-22 09:01:49,823 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-22 09:01:49,823 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-22 09:01:49,823 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-22 09:01:49,823 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-22 09:01:49,824 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-22 09:01:49,824 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-22 09:01:49,824 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-22 09:01:49,824 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-22 09:01:49,825 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-22 09:01:49,825 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-22 09:01:49,825 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-22 09:01:49,828 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-22 09:01:49,828 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-22 09:01:49,828 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-22 09:01:49,832 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-22 09:01:49,832 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-22 09:01:49,832 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-22 09:01:49,832 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-22 09:01:49,833 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-22 09:01:49,833 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-22 09:01:49,833 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-22 09:01:49,833 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-22 09:01:49,833 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-22 09:01:49,833 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-22 09:01:49,833 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-22 09:01:49,834 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-22 09:01:49,834 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-22 09:01:49,834 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-22 09:01:49,834 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-22 09:01:49,834 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-22 09:01:49,834 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-22 09:01:49,834 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-22 09:01:49,835 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-22 09:01:49,835 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 65e290fb975399bc2cc283273eaab9fa300db5fe57e6fb279b59522887532a83
[2024-11-22 09:01:50,013 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-22 09:01:50,034 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-22 09:01:50,036 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-22 09:01:50,037 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-22 09:01:50,042 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-22 09:01:50,043 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-52.i
[2024-11-22 09:01:51,506 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-22 09:01:51,670 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-22 09:01:51,673 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-52.i
[2024-11-22 09:01:51,688 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7d9b737d/66ef45ed8db147bbabecf1a34b47d6a2/FLAG1d15570a0
[2024-11-22 09:01:52,062 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7d9b737d/66ef45ed8db147bbabecf1a34b47d6a2
[2024-11-22 09:01:52,065 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-22 09:01:52,066 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-22 09:01:52,067 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-22 09:01:52,067 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-22 09:01:52,071 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-22 09:01:52,072 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:01:52" (1/1) ...
[2024-11-22 09:01:52,073 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@181ea4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:52, skipping insertion in model container
[2024-11-22 09:01:52,073 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:01:52" (1/1) ...
[2024-11-22 09:01:52,098 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-22 09:01:52,247 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/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-52.i[919,932]
[2024-11-22 09:01:52,311 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-22 09:01:52,326 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-22 09:01:52,339 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/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-52.i[919,932]
[2024-11-22 09:01:52,368 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-22 09:01:52,391 INFO  L204         MainTranslator]: Completed translation
[2024-11-22 09:01:52,391 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:52 WrapperNode
[2024-11-22 09:01:52,391 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-22 09:01:52,392 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-22 09:01:52,393 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-22 09:01:52,393 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-22 09:01:52,398 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:52" (1/1) ...
[2024-11-22 09:01:52,411 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:52" (1/1) ...
[2024-11-22 09:01:52,458 INFO  L138                Inliner]: procedures = 26, calls = 35, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 206
[2024-11-22 09:01:52,458 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-22 09:01:52,459 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-22 09:01:52,459 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-22 09:01:52,460 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-22 09:01:52,471 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:52" (1/1) ...
[2024-11-22 09:01:52,471 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:52" (1/1) ...
[2024-11-22 09:01:52,480 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:52" (1/1) ...
[2024-11-22 09:01:52,501 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-22 09:01:52,502 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:52" (1/1) ...
[2024-11-22 09:01:52,502 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:52" (1/1) ...
[2024-11-22 09:01:52,510 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:52" (1/1) ...
[2024-11-22 09:01:52,513 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:52" (1/1) ...
[2024-11-22 09:01:52,516 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:52" (1/1) ...
[2024-11-22 09:01:52,518 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:52" (1/1) ...
[2024-11-22 09:01:52,521 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-22 09:01:52,522 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-22 09:01:52,522 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-22 09:01:52,522 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-22 09:01:52,523 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:52" (1/1) ...
[2024-11-22 09:01:52,532 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-22 09:01:52,548 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-22 09:01:52,573 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-22 09:01:52,579 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-22 09:01:52,618 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-22 09:01:52,618 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-22 09:01:52,619 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-22 09:01:52,619 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-22 09:01:52,619 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-22 09:01:52,620 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-22 09:01:52,739 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-22 09:01:52,741 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-22 09:01:53,086 INFO  L?                        ?]: Removed 22 outVars from TransFormulas that were not future-live.
[2024-11-22 09:01:53,086 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-22 09:01:53,101 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-22 09:01:53,102 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-22 09:01:53,103 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:01:53 BoogieIcfgContainer
[2024-11-22 09:01:53,103 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-22 09:01:53,104 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-22 09:01:53,105 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-22 09:01:53,107 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-22 09:01:53,107 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 09:01:52" (1/3) ...
[2024-11-22 09:01:53,108 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@379c580f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:01:53, skipping insertion in model container
[2024-11-22 09:01:53,109 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:01:52" (2/3) ...
[2024-11-22 09:01:53,109 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@379c580f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:01:53, skipping insertion in model container
[2024-11-22 09:01:53,109 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:01:53" (3/3) ...
[2024-11-22 09:01:53,110 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-co_file-52.i
[2024-11-22 09:01:53,123 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-22 09:01:53,123 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-22 09:01:53,184 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-22 09:01:53,193 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;@1739d562, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-22 09:01:53,194 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-22 09:01:53,198 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 87 states, 62 states have (on average 1.467741935483871) internal successors, (91), 63 states have internal predecessors, (91), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22)
[2024-11-22 09:01:53,209 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 153
[2024-11-22 09:01:53,209 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 09:01:53,210 INFO  L215           NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 09:01:53,210 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 09:01:53,214 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 09:01:53,215 INFO  L85        PathProgramCache]: Analyzing trace with hash 790620788, now seen corresponding path program 1 times
[2024-11-22 09:01:53,222 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 09:01:53,222 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957177095]
[2024-11-22 09:01:53,222 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 09:01:53,223 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 09:01:53,332 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 09:01:53,468 INFO  L134       CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 882 trivial. 0 not checked.
[2024-11-22 09:01:53,468 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 09:01:53,468 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957177095]
[2024-11-22 09:01:53,469 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957177095] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-22 09:01:53,469 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1100639619]
[2024-11-22 09:01:53,469 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 09:01:53,469 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-22 09:01:53,469 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-22 09:01:53,473 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)
[2024-11-22 09:01:53,474 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-22 09:01:53,618 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 09:01:53,622 INFO  L255         TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-22 09:01:53,632 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-22 09:01:53,654 INFO  L134       CoverageAnalysis]: Checked inductivity of 924 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 882 trivial. 0 not checked.
[2024-11-22 09:01:53,655 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-22 09:01:53,655 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1100639619] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 09:01:53,655 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-22 09:01:53,655 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-22 09:01:53,657 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703139896]
[2024-11-22 09:01:53,658 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 09:01:53,661 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-22 09:01:53,661 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 09:01:53,683 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-22 09:01:53,684 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-22 09:01:53,686 INFO  L87              Difference]: Start difference. First operand  has 87 states, 62 states have (on average 1.467741935483871) internal successors, (91), 63 states have internal predecessors, (91), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand  has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 2 states have call successors, (22)
[2024-11-22 09:01:53,711 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 09:01:53,712 INFO  L93              Difference]: Finished difference Result 167 states and 286 transitions.
[2024-11-22 09:01:53,713 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-22 09:01:53,715 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 2 states have call successors, (22) Word has length 152
[2024-11-22 09:01:53,715 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 09:01:53,721 INFO  L225             Difference]: With dead ends: 167
[2024-11-22 09:01:53,721 INFO  L226             Difference]: Without dead ends: 83
[2024-11-22 09:01:53,724 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-22 09:01:53,729 INFO  L432           NwaCegarLoop]: 128 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-22 09:01:53,729 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-22 09:01:53,747 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 83 states.
[2024-11-22 09:01:53,769 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83.
[2024-11-22 09:01:53,770 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 83 states, 59 states have (on average 1.423728813559322) internal successors, (84), 59 states have internal predecessors, (84), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22)
[2024-11-22 09:01:53,775 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 128 transitions.
[2024-11-22 09:01:53,777 INFO  L78                 Accepts]: Start accepts. Automaton has 83 states and 128 transitions. Word has length 152
[2024-11-22 09:01:53,777 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 09:01:53,777 INFO  L471      AbstractCegarLoop]: Abstraction has 83 states and 128 transitions.
[2024-11-22 09:01:53,777 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 2 states have call successors, (22)
[2024-11-22 09:01:53,778 INFO  L276                IsEmpty]: Start isEmpty. Operand 83 states and 128 transitions.
[2024-11-22 09:01:53,780 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 153
[2024-11-22 09:01:53,780 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 09:01:53,781 INFO  L215           NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 09:01:53,788 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-22 09:01:53,981 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,SelfDestructingSolverStorable0
[2024-11-22 09:01:53,982 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 09:01:53,983 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 09:01:53,983 INFO  L85        PathProgramCache]: Analyzing trace with hash 231458620, now seen corresponding path program 1 times
[2024-11-22 09:01:53,983 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 09:01:53,984 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232980356]
[2024-11-22 09:01:53,984 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 09:01:53,984 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 09:01:54,098 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 09:01:54,459 INFO  L134       CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked.
[2024-11-22 09:01:54,459 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 09:01:54,460 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232980356]
[2024-11-22 09:01:54,460 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232980356] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 09:01:54,460 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 09:01:54,461 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-22 09:01:54,461 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331482705]
[2024-11-22 09:01:54,461 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 09:01:54,462 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-22 09:01:54,462 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 09:01:54,463 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-22 09:01:54,463 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-22 09:01:54,463 INFO  L87              Difference]: Start difference. First operand 83 states and 128 transitions. Second operand  has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22)
[2024-11-22 09:01:54,543 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 09:01:54,543 INFO  L93              Difference]: Finished difference Result 237 states and 372 transitions.
[2024-11-22 09:01:54,544 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-22 09:01:54,544 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 152
[2024-11-22 09:01:54,545 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 09:01:54,548 INFO  L225             Difference]: With dead ends: 237
[2024-11-22 09:01:54,549 INFO  L226             Difference]: Without dead ends: 157
[2024-11-22 09:01:54,550 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-22 09:01:54,552 INFO  L432           NwaCegarLoop]: 118 mSDtfsCounter, 71 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-22 09:01:54,553 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 229 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-22 09:01:54,553 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 157 states.
[2024-11-22 09:01:54,577 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 138.
[2024-11-22 09:01:54,579 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 138 states, 91 states have (on average 1.3736263736263736) internal successors, (125), 91 states have internal predecessors, (125), 44 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44)
[2024-11-22 09:01:54,581 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 213 transitions.
[2024-11-22 09:01:54,583 INFO  L78                 Accepts]: Start accepts. Automaton has 138 states and 213 transitions. Word has length 152
[2024-11-22 09:01:54,584 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 09:01:54,584 INFO  L471      AbstractCegarLoop]: Abstraction has 138 states and 213 transitions.
[2024-11-22 09:01:54,584 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22)
[2024-11-22 09:01:54,584 INFO  L276                IsEmpty]: Start isEmpty. Operand 138 states and 213 transitions.
[2024-11-22 09:01:54,586 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2024-11-22 09:01:54,586 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 09:01:54,586 INFO  L215           NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 09:01:54,586 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-22 09:01:54,586 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 09:01:54,587 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 09:01:54,587 INFO  L85        PathProgramCache]: Analyzing trace with hash -406857361, now seen corresponding path program 1 times
[2024-11-22 09:01:54,587 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 09:01:54,587 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975472049]
[2024-11-22 09:01:54,587 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 09:01:54,587 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 09:01:54,636 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 09:01:54,837 INFO  L134       CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked.
[2024-11-22 09:01:54,840 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 09:01:54,841 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975472049]
[2024-11-22 09:01:54,841 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975472049] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 09:01:54,841 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 09:01:54,841 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-22 09:01:54,841 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201509305]
[2024-11-22 09:01:54,842 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 09:01:54,843 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-22 09:01:54,845 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 09:01:54,845 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-22 09:01:54,846 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-22 09:01:54,846 INFO  L87              Difference]: Start difference. First operand 138 states and 213 transitions. Second operand  has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22)
[2024-11-22 09:01:54,937 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 09:01:54,937 INFO  L93              Difference]: Finished difference Result 306 states and 477 transitions.
[2024-11-22 09:01:54,938 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-22 09:01:54,938 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 153
[2024-11-22 09:01:54,939 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 09:01:54,941 INFO  L225             Difference]: With dead ends: 306
[2024-11-22 09:01:54,944 INFO  L226             Difference]: Without dead ends: 218
[2024-11-22 09:01:54,944 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-22 09:01:54,945 INFO  L432           NwaCegarLoop]: 120 mSDtfsCounter, 84 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-22 09:01:54,947 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 235 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-22 09:01:54,948 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 218 states.
[2024-11-22 09:01:54,970 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 216.
[2024-11-22 09:01:54,972 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 216 states, 146 states have (on average 1.3904109589041096) internal successors, (203), 146 states have internal predecessors, (203), 66 states have call successors, (66), 3 states have call predecessors, (66), 3 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66)
[2024-11-22 09:01:54,975 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 335 transitions.
[2024-11-22 09:01:54,975 INFO  L78                 Accepts]: Start accepts. Automaton has 216 states and 335 transitions. Word has length 153
[2024-11-22 09:01:54,976 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 09:01:54,976 INFO  L471      AbstractCegarLoop]: Abstraction has 216 states and 335 transitions.
[2024-11-22 09:01:54,977 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22)
[2024-11-22 09:01:54,977 INFO  L276                IsEmpty]: Start isEmpty. Operand 216 states and 335 transitions.
[2024-11-22 09:01:54,978 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 155
[2024-11-22 09:01:54,982 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 09:01:54,982 INFO  L215           NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 09:01:54,982 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-22 09:01:54,982 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 09:01:54,982 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 09:01:54,982 INFO  L85        PathProgramCache]: Analyzing trace with hash 231644096, now seen corresponding path program 1 times
[2024-11-22 09:01:54,983 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 09:01:54,983 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727443410]
[2024-11-22 09:01:54,983 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 09:01:54,983 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 09:01:55,028 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 09:01:55,607 INFO  L134       CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked.
[2024-11-22 09:01:55,607 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 09:01:55,607 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727443410]
[2024-11-22 09:01:55,608 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727443410] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 09:01:55,608 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 09:01:55,608 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-22 09:01:55,608 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925625485]
[2024-11-22 09:01:55,608 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 09:01:55,609 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-22 09:01:55,609 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 09:01:55,610 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-22 09:01:55,610 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2024-11-22 09:01:55,610 INFO  L87              Difference]: Start difference. First operand 216 states and 335 transitions. Second operand  has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22)
[2024-11-22 09:01:55,751 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 09:01:55,753 INFO  L93              Difference]: Finished difference Result 465 states and 708 transitions.
[2024-11-22 09:01:55,753 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-22 09:01:55,754 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 154
[2024-11-22 09:01:55,754 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 09:01:55,757 INFO  L225             Difference]: With dead ends: 465
[2024-11-22 09:01:55,757 INFO  L226             Difference]: Without dead ends: 307
[2024-11-22 09:01:55,758 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2024-11-22 09:01:55,760 INFO  L432           NwaCegarLoop]: 130 mSDtfsCounter, 113 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-22 09:01:55,761 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 303 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-22 09:01:55,761 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 307 states.
[2024-11-22 09:01:55,799 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 255.
[2024-11-22 09:01:55,799 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 255 states, 182 states have (on average 1.3571428571428572) internal successors, (247), 182 states have internal predecessors, (247), 66 states have call successors, (66), 6 states have call predecessors, (66), 6 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66)
[2024-11-22 09:01:55,802 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 379 transitions.
[2024-11-22 09:01:55,803 INFO  L78                 Accepts]: Start accepts. Automaton has 255 states and 379 transitions. Word has length 154
[2024-11-22 09:01:55,804 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 09:01:55,804 INFO  L471      AbstractCegarLoop]: Abstraction has 255 states and 379 transitions.
[2024-11-22 09:01:55,804 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22)
[2024-11-22 09:01:55,804 INFO  L276                IsEmpty]: Start isEmpty. Operand 255 states and 379 transitions.
[2024-11-22 09:01:55,807 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 156
[2024-11-22 09:01:55,807 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 09:01:55,808 INFO  L215           NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 09:01:55,808 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-22 09:01:55,809 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 09:01:55,809 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 09:01:55,809 INFO  L85        PathProgramCache]: Analyzing trace with hash 1681486870, now seen corresponding path program 1 times
[2024-11-22 09:01:55,809 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 09:01:55,809 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513322340]
[2024-11-22 09:01:55,809 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 09:01:55,810 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 09:01:55,844 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 09:01:56,062 INFO  L134       CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked.
[2024-11-22 09:01:56,063 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 09:01:56,063 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513322340]
[2024-11-22 09:01:56,063 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513322340] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 09:01:56,063 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 09:01:56,063 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-22 09:01:56,063 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419205425]
[2024-11-22 09:01:56,063 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 09:01:56,064 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-22 09:01:56,064 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 09:01:56,064 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-22 09:01:56,064 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-22 09:01:56,064 INFO  L87              Difference]: Start difference. First operand 255 states and 379 transitions. Second operand  has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22)
[2024-11-22 09:01:56,422 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 09:01:56,423 INFO  L93              Difference]: Finished difference Result 584 states and 857 transitions.
[2024-11-22 09:01:56,423 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-22 09:01:56,423 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 155
[2024-11-22 09:01:56,424 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 09:01:56,429 INFO  L225             Difference]: With dead ends: 584
[2024-11-22 09:01:56,430 INFO  L226             Difference]: Without dead ends: 392
[2024-11-22 09:01:56,430 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2024-11-22 09:01:56,431 INFO  L432           NwaCegarLoop]: 141 mSDtfsCounter, 422 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-22 09:01:56,433 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [422 Valid, 230 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-22 09:01:56,434 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 392 states.
[2024-11-22 09:01:56,482 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 270.
[2024-11-22 09:01:56,482 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 270 states, 195 states have (on average 1.353846153846154) internal successors, (264), 195 states have internal predecessors, (264), 66 states have call successors, (66), 8 states have call predecessors, (66), 8 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66)
[2024-11-22 09:01:56,488 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 396 transitions.
[2024-11-22 09:01:56,488 INFO  L78                 Accepts]: Start accepts. Automaton has 270 states and 396 transitions. Word has length 155
[2024-11-22 09:01:56,489 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 09:01:56,489 INFO  L471      AbstractCegarLoop]: Abstraction has 270 states and 396 transitions.
[2024-11-22 09:01:56,489 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22)
[2024-11-22 09:01:56,489 INFO  L276                IsEmpty]: Start isEmpty. Operand 270 states and 396 transitions.
[2024-11-22 09:01:56,490 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 156
[2024-11-22 09:01:56,490 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 09:01:56,490 INFO  L215           NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 09:01:56,490 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-22 09:01:56,491 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 09:01:56,491 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 09:01:56,491 INFO  L85        PathProgramCache]: Analyzing trace with hash 660418516, now seen corresponding path program 1 times
[2024-11-22 09:01:56,495 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 09:01:56,495 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929691881]
[2024-11-22 09:01:56,495 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 09:01:56,495 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 09:01:56,614 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 09:01:57,392 INFO  L134       CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked.
[2024-11-22 09:01:57,393 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 09:01:57,393 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929691881]
[2024-11-22 09:01:57,393 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929691881] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 09:01:57,393 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 09:01:57,393 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-22 09:01:57,393 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488660576]
[2024-11-22 09:01:57,393 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 09:01:57,393 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-22 09:01:57,394 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 09:01:57,394 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-22 09:01:57,394 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-22 09:01:57,394 INFO  L87              Difference]: Start difference. First operand 270 states and 396 transitions. Second operand  has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22)
[2024-11-22 09:01:57,489 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 09:01:57,489 INFO  L93              Difference]: Finished difference Result 530 states and 781 transitions.
[2024-11-22 09:01:57,489 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-22 09:01:57,490 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 155
[2024-11-22 09:01:57,490 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 09:01:57,492 INFO  L225             Difference]: With dead ends: 530
[2024-11-22 09:01:57,493 INFO  L226             Difference]: Without dead ends: 312
[2024-11-22 09:01:57,493 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-22 09:01:57,495 INFO  L432           NwaCegarLoop]: 124 mSDtfsCounter, 111 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-22 09:01:57,496 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 225 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-22 09:01:57,496 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 312 states.
[2024-11-22 09:01:57,523 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 270.
[2024-11-22 09:01:57,524 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 270 states, 195 states have (on average 1.3487179487179488) internal successors, (263), 195 states have internal predecessors, (263), 66 states have call successors, (66), 8 states have call predecessors, (66), 8 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66)
[2024-11-22 09:01:57,526 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 395 transitions.
[2024-11-22 09:01:57,527 INFO  L78                 Accepts]: Start accepts. Automaton has 270 states and 395 transitions. Word has length 155
[2024-11-22 09:01:57,527 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 09:01:57,527 INFO  L471      AbstractCegarLoop]: Abstraction has 270 states and 395 transitions.
[2024-11-22 09:01:57,527 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22)
[2024-11-22 09:01:57,527 INFO  L276                IsEmpty]: Start isEmpty. Operand 270 states and 395 transitions.
[2024-11-22 09:01:57,529 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 158
[2024-11-22 09:01:57,529 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 09:01:57,529 INFO  L215           NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 09:01:57,529 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-22 09:01:57,530 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 09:01:57,530 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 09:01:57,530 INFO  L85        PathProgramCache]: Analyzing trace with hash -2021574575, now seen corresponding path program 1 times
[2024-11-22 09:01:57,530 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 09:01:57,531 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356366504]
[2024-11-22 09:01:57,531 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 09:01:57,531 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 09:01:57,604 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 09:01:57,986 INFO  L134       CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked.
[2024-11-22 09:01:57,987 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 09:01:57,987 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356366504]
[2024-11-22 09:01:57,987 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356366504] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 09:01:57,987 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 09:01:57,987 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-22 09:01:57,987 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718013767]
[2024-11-22 09:01:57,987 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 09:01:57,988 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-22 09:01:57,988 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 09:01:57,988 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-22 09:01:57,989 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-22 09:01:57,989 INFO  L87              Difference]: Start difference. First operand 270 states and 395 transitions. Second operand  has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 2 states have call successors, (22)
[2024-11-22 09:01:58,299 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 09:01:58,300 INFO  L93              Difference]: Finished difference Result 575 states and 849 transitions.
[2024-11-22 09:01:58,300 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-22 09:01:58,300 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 2 states have call successors, (22) Word has length 157
[2024-11-22 09:01:58,301 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 09:01:58,303 INFO  L225             Difference]: With dead ends: 575
[2024-11-22 09:01:58,303 INFO  L226             Difference]: Without dead ends: 369
[2024-11-22 09:01:58,304 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2024-11-22 09:01:58,304 INFO  L432           NwaCegarLoop]: 105 mSDtfsCounter, 307 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-22 09:01:58,305 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 318 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-22 09:01:58,305 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 369 states.
[2024-11-22 09:01:58,333 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 313.
[2024-11-22 09:01:58,334 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 313 states, 238 states have (on average 1.365546218487395) internal successors, (325), 238 states have internal predecessors, (325), 66 states have call successors, (66), 8 states have call predecessors, (66), 8 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66)
[2024-11-22 09:01:58,336 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 457 transitions.
[2024-11-22 09:01:58,336 INFO  L78                 Accepts]: Start accepts. Automaton has 313 states and 457 transitions. Word has length 157
[2024-11-22 09:01:58,337 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 09:01:58,337 INFO  L471      AbstractCegarLoop]: Abstraction has 313 states and 457 transitions.
[2024-11-22 09:01:58,337 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 2 states have call successors, (22)
[2024-11-22 09:01:58,337 INFO  L276                IsEmpty]: Start isEmpty. Operand 313 states and 457 transitions.
[2024-11-22 09:01:58,338 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 158
[2024-11-22 09:01:58,339 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 09:01:58,339 INFO  L215           NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 09:01:58,339 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-22 09:01:58,339 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 09:01:58,339 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 09:01:58,340 INFO  L85        PathProgramCache]: Analyzing trace with hash 1605517333, now seen corresponding path program 1 times
[2024-11-22 09:01:58,340 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 09:01:58,340 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021576344]
[2024-11-22 09:01:58,340 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 09:01:58,340 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 09:01:58,368 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 09:01:58,518 INFO  L134       CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked.
[2024-11-22 09:01:58,518 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 09:01:58,518 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021576344]
[2024-11-22 09:01:58,518 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021576344] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 09:01:58,518 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 09:01:58,518 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-22 09:01:58,518 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111195966]
[2024-11-22 09:01:58,518 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 09:01:58,519 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-22 09:01:58,519 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 09:01:58,519 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-22 09:01:58,520 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-22 09:01:58,520 INFO  L87              Difference]: Start difference. First operand 313 states and 457 transitions. Second operand  has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22)
[2024-11-22 09:01:58,756 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 09:01:58,756 INFO  L93              Difference]: Finished difference Result 843 states and 1236 transitions.
[2024-11-22 09:01:58,756 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-22 09:01:58,757 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 157
[2024-11-22 09:01:58,757 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 09:01:58,759 INFO  L225             Difference]: With dead ends: 843
[2024-11-22 09:01:58,759 INFO  L226             Difference]: Without dead ends: 636
[2024-11-22 09:01:58,762 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-11-22 09:01:58,763 INFO  L432           NwaCegarLoop]: 201 mSDtfsCounter, 197 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-22 09:01:58,763 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 561 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-22 09:01:58,764 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 636 states.
[2024-11-22 09:01:58,819 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 349.
[2024-11-22 09:01:58,820 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 349 states, 274 states have (on average 1.3795620437956204) internal successors, (378), 274 states have internal predecessors, (378), 66 states have call successors, (66), 8 states have call predecessors, (66), 8 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66)
[2024-11-22 09:01:58,822 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 510 transitions.
[2024-11-22 09:01:58,822 INFO  L78                 Accepts]: Start accepts. Automaton has 349 states and 510 transitions. Word has length 157
[2024-11-22 09:01:58,823 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 09:01:58,823 INFO  L471      AbstractCegarLoop]: Abstraction has 349 states and 510 transitions.
[2024-11-22 09:01:58,823 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22)
[2024-11-22 09:01:58,823 INFO  L276                IsEmpty]: Start isEmpty. Operand 349 states and 510 transitions.
[2024-11-22 09:01:58,825 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 158
[2024-11-22 09:01:58,825 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 09:01:58,825 INFO  L215           NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 09:01:58,825 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-22 09:01:58,825 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 09:01:58,826 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 09:01:58,826 INFO  L85        PathProgramCache]: Analyzing trace with hash 1858026899, now seen corresponding path program 1 times
[2024-11-22 09:01:58,826 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 09:01:58,826 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383423916]
[2024-11-22 09:01:58,826 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 09:01:58,826 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 09:01:58,957 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat