./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-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-ps-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 d2756a3afeabee0bd07615570da162530b76933ca347aab7efd24527f8af5fb3
--- Real Ultimate output ---
This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m
[2024-11-22 09:35:31,437 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-22 09:35:31,512 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-22 09:35:31,518 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-22 09:35:31,519 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-22 09:35:31,552 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-22 09:35:31,552 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-22 09:35:31,553 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-22 09:35:31,554 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-22 09:35:31,554 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-22 09:35:31,554 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-22 09:35:31,555 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-22 09:35:31,556 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-22 09:35:31,557 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-22 09:35:31,559 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-22 09:35:31,560 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-22 09:35:31,560 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-22 09:35:31,560 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-22 09:35:31,561 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-22 09:35:31,561 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-22 09:35:31,561 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-22 09:35:31,565 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-22 09:35:31,565 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-22 09:35:31,566 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-22 09:35:31,566 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-22 09:35:31,566 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-22 09:35:31,566 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-22 09:35:31,567 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-22 09:35:31,567 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-22 09:35:31,567 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-22 09:35:31,568 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-22 09:35:31,568 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-22 09:35:31,568 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-22 09:35:31,568 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-22 09:35:31,569 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-22 09:35:31,569 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-22 09:35:31,571 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-22 09:35:31,572 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-22 09:35:31,572 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-22 09:35:31,573 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-22 09:35:31,573 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-22 09:35:31,573 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-22 09:35:31,574 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 -> d2756a3afeabee0bd07615570da162530b76933ca347aab7efd24527f8af5fb3
[2024-11-22 09:35:31,810 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-22 09:35:31,833 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-22 09:35:31,837 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-22 09:35:31,838 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-22 09:35:31,839 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-22 09:35:31,840 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-52.i
[2024-11-22 09:35:33,406 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-22 09:35:33,662 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-22 09:35:33,663 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-52.i
[2024-11-22 09:35:33,679 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d9e47644/fb98d083af1b4a61b1b03fcb6babc144/FLAG4059d84c9
[2024-11-22 09:35:33,698 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d9e47644/fb98d083af1b4a61b1b03fcb6babc144
[2024-11-22 09:35:33,701 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-22 09:35:33,702 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-22 09:35:33,703 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-22 09:35:33,703 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-22 09:35:33,709 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-22 09:35:33,710 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:35:33" (1/1) ...
[2024-11-22 09:35:33,711 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10e2e3d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:35:33, skipping insertion in model container
[2024-11-22 09:35:33,711 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:35:33" (1/1) ...
[2024-11-22 09:35:33,745 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-22 09:35:33,932 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-ps-co_file-52.i[919,932]
[2024-11-22 09:35:34,037 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-22 09:35:34,052 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-22 09:35:34,067 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-ps-co_file-52.i[919,932]
[2024-11-22 09:35:34,103 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-22 09:35:34,128 INFO  L204         MainTranslator]: Completed translation
[2024-11-22 09:35:34,128 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:35:34 WrapperNode
[2024-11-22 09:35:34,129 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-22 09:35:34,130 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-22 09:35:34,130 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-22 09:35:34,130 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-22 09:35:34,141 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:35:34" (1/1) ...
[2024-11-22 09:35:34,154 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:35:34" (1/1) ...
[2024-11-22 09:35:34,205 INFO  L138                Inliner]: procedures = 26, calls = 35, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 206
[2024-11-22 09:35:34,206 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-22 09:35:34,206 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-22 09:35:34,206 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-22 09:35:34,206 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-22 09:35:34,216 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:35:34" (1/1) ...
[2024-11-22 09:35:34,217 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:35:34" (1/1) ...
[2024-11-22 09:35:34,220 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:35:34" (1/1) ...
[2024-11-22 09:35:34,241 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 09:35:34,241 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:35:34" (1/1) ...
[2024-11-22 09:35:34,242 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:35:34" (1/1) ...
[2024-11-22 09:35:34,257 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:35:34" (1/1) ...
[2024-11-22 09:35:34,261 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:35:34" (1/1) ...
[2024-11-22 09:35:34,264 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:35:34" (1/1) ...
[2024-11-22 09:35:34,266 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:35:34" (1/1) ...
[2024-11-22 09:35:34,270 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-22 09:35:34,271 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-22 09:35:34,271 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-22 09:35:34,271 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-22 09:35:34,272 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:35:34" (1/1) ...
[2024-11-22 09:35:34,281 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-22 09:35:34,291 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-22 09:35:34,308 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 09:35:34,312 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 09:35:34,359 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-22 09:35:34,360 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-22 09:35:34,360 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-22 09:35:34,361 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-22 09:35:34,361 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-22 09:35:34,361 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-22 09:35:34,486 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-22 09:35:34,501 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-22 09:35:35,006 INFO  L?                        ?]: Removed 22 outVars from TransFormulas that were not future-live.
[2024-11-22 09:35:35,007 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-22 09:35:35,026 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-22 09:35:35,027 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-22 09:35:35,027 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:35:35 BoogieIcfgContainer
[2024-11-22 09:35:35,027 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-22 09:35:35,032 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-22 09:35:35,033 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-22 09:35:35,036 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-22 09:35:35,037 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 09:35:33" (1/3) ...
[2024-11-22 09:35:35,037 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@679fca8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:35:35, skipping insertion in model container
[2024-11-22 09:35:35,038 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:35:34" (2/3) ...
[2024-11-22 09:35:35,038 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@679fca8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:35:35, skipping insertion in model container
[2024-11-22 09:35:35,038 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:35:35" (3/3) ...
[2024-11-22 09:35:35,039 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-co_file-52.i
[2024-11-22 09:35:35,053 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-22 09:35:35,053 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-22 09:35:35,118 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-22 09:35:35,125 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;@6c48da5a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-22 09:35:35,125 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-22 09:35:35,129 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 88 states, 63 states have (on average 1.4603174603174602) internal successors, (92), 64 states have internal predecessors, (92), 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 09:35:35,141 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2024-11-22 09:35:35,141 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 09:35:35,142 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 09:35:35,143 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 09:35:35,148 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 09:35:35,148 INFO  L85        PathProgramCache]: Analyzing trace with hash -417909114, now seen corresponding path program 1 times
[2024-11-22 09:35:35,157 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 09:35:35,157 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846474829]
[2024-11-22 09:35:35,158 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 09:35:35,158 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 09:35:35,297 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 09:35:35,555 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 09:35:35,556 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 09:35:35,557 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846474829]
[2024-11-22 09:35:35,557 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846474829] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-22 09:35:35,558 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2045061800]
[2024-11-22 09:35:35,558 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 09:35:35,558 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-22 09:35:35,559 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-22 09:35:35,562 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 09:35:35,565 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 09:35:35,767 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 09:35:35,770 INFO  L255         TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-22 09:35:35,782 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-22 09:35:35,824 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 09:35:35,824 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-22 09:35:35,825 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2045061800] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 09:35:35,825 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-22 09:35:35,825 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-22 09:35:35,830 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4944744]
[2024-11-22 09:35:35,830 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 09:35:35,836 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-22 09:35:35,836 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 09:35:35,856 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-22 09:35:35,857 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-22 09:35:35,859 INFO  L87              Difference]: Start difference. First operand  has 88 states, 63 states have (on average 1.4603174603174602) internal successors, (92), 64 states have internal predecessors, (92), 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 24.0) internal successors, (48), 2 states have internal predecessors, (48), 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 09:35:35,886 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 09:35:35,887 INFO  L93              Difference]: Finished difference Result 169 states and 288 transitions.
[2024-11-22 09:35:35,888 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-22 09:35:35,889 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 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 153
[2024-11-22 09:35:35,890 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 09:35:35,897 INFO  L225             Difference]: With dead ends: 169
[2024-11-22 09:35:35,897 INFO  L226             Difference]: Without dead ends: 84
[2024-11-22 09:35:35,901 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 154 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 09:35:35,904 INFO  L432           NwaCegarLoop]: 129 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, 129 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 09:35:35,905 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-22 09:35:35,921 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 84 states.
[2024-11-22 09:35:35,943 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84.
[2024-11-22 09:35:35,944 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 84 states, 60 states have (on average 1.4166666666666667) internal successors, (85), 60 states have internal predecessors, (85), 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 09:35:35,946 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 129 transitions.
[2024-11-22 09:35:35,949 INFO  L78                 Accepts]: Start accepts. Automaton has 84 states and 129 transitions. Word has length 153
[2024-11-22 09:35:35,949 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 09:35:35,949 INFO  L471      AbstractCegarLoop]: Abstraction has 84 states and 129 transitions.
[2024-11-22 09:35:35,950 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 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 09:35:35,950 INFO  L276                IsEmpty]: Start isEmpty. Operand 84 states and 129 transitions.
[2024-11-22 09:35:35,954 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2024-11-22 09:35:35,954 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 09:35:35,955 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 09:35:35,966 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2024-11-22 09:35:36,155 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 09:35:36,157 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 09:35:36,157 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 09:35:36,158 INFO  L85        PathProgramCache]: Analyzing trace with hash -572067138, now seen corresponding path program 1 times
[2024-11-22 09:35:36,158 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 09:35:36,158 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361974051]
[2024-11-22 09:35:36,158 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 09:35:36,159 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 09:35:36,278 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 09:35:36,506 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 09:35:36,506 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 09:35:36,507 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361974051]
[2024-11-22 09:35:36,507 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361974051] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 09:35:36,507 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 09:35:36,507 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-22 09:35:36,507 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834430390]
[2024-11-22 09:35:36,508 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 09:35:36,509 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-22 09:35:36,509 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 09:35:36,510 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-22 09:35:36,510 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-22 09:35:36,510 INFO  L87              Difference]: Start difference. First operand 84 states and 129 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 09:35:36,576 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 09:35:36,576 INFO  L93              Difference]: Finished difference Result 246 states and 381 transitions.
[2024-11-22 09:35:36,576 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-22 09:35:36,577 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 09:35:36,578 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 09:35:36,580 INFO  L225             Difference]: With dead ends: 246
[2024-11-22 09:35:36,580 INFO  L226             Difference]: Without dead ends: 165
[2024-11-22 09:35:36,581 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-22 09:35:36,582 INFO  L432           NwaCegarLoop]: 147 mSDtfsCounter, 82 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-22 09:35:36,582 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 265 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-22 09:35:36,583 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 165 states.
[2024-11-22 09:35:36,616 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 162.
[2024-11-22 09:35:36,617 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 162 states, 115 states have (on average 1.4173913043478261) internal successors, (163), 115 states have internal predecessors, (163), 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 09:35:36,620 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 251 transitions.
[2024-11-22 09:35:36,624 INFO  L78                 Accepts]: Start accepts. Automaton has 162 states and 251 transitions. Word has length 153
[2024-11-22 09:35:36,625 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 09:35:36,625 INFO  L471      AbstractCegarLoop]: Abstraction has 162 states and 251 transitions.
[2024-11-22 09:35:36,625 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 09:35:36,625 INFO  L276                IsEmpty]: Start isEmpty. Operand 162 states and 251 transitions.
[2024-11-22 09:35:36,629 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 155
[2024-11-22 09:35:36,630 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 09:35:36,630 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 09:35:36,630 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-22 09:35:36,631 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 09:35:36,631 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 09:35:36,631 INFO  L85        PathProgramCache]: Analyzing trace with hash -347069248, now seen corresponding path program 1 times
[2024-11-22 09:35:36,632 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 09:35:36,632 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347069186]
[2024-11-22 09:35:36,632 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 09:35:36,632 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 09:35:36,713 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 09:35:37,113 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 09:35:37,113 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 09:35:37,113 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347069186]
[2024-11-22 09:35:37,113 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347069186] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 09:35:37,113 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 09:35:37,114 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-22 09:35:37,114 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302589329]
[2024-11-22 09:35:37,114 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 09:35:37,117 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-22 09:35:37,117 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 09:35:37,118 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-22 09:35:37,118 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-22 09:35:37,118 INFO  L87              Difference]: Start difference. First operand 162 states and 251 transitions. Second operand  has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 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 09:35:37,192 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 09:35:37,192 INFO  L93              Difference]: Finished difference Result 480 states and 747 transitions.
[2024-11-22 09:35:37,193 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-22 09:35:37,193 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 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 09:35:37,194 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 09:35:37,201 INFO  L225             Difference]: With dead ends: 480
[2024-11-22 09:35:37,201 INFO  L226             Difference]: Without dead ends: 321
[2024-11-22 09:35:37,204 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 09:35:37,206 INFO  L432           NwaCegarLoop]: 123 mSDtfsCounter, 87 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-22 09:35:37,207 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 241 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-22 09:35:37,208 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 321 states.
[2024-11-22 09:35:37,280 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 319.
[2024-11-22 09:35:37,282 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 319 states, 226 states have (on average 1.415929203539823) internal successors, (320), 226 states have internal predecessors, (320), 88 states have call successors, (88), 4 states have call predecessors, (88), 4 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88)
[2024-11-22 09:35:37,289 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 496 transitions.
[2024-11-22 09:35:37,290 INFO  L78                 Accepts]: Start accepts. Automaton has 319 states and 496 transitions. Word has length 154
[2024-11-22 09:35:37,291 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 09:35:37,291 INFO  L471      AbstractCegarLoop]: Abstraction has 319 states and 496 transitions.
[2024-11-22 09:35:37,291 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 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 09:35:37,291 INFO  L276                IsEmpty]: Start isEmpty. Operand 319 states and 496 transitions.
[2024-11-22 09:35:37,296 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 156
[2024-11-22 09:35:37,296 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 09:35:37,296 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 09:35:37,297 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-22 09:35:37,297 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 09:35:37,297 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 09:35:37,297 INFO  L85        PathProgramCache]: Analyzing trace with hash -803671258, now seen corresponding path program 1 times
[2024-11-22 09:35:37,298 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 09:35:37,298 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142091614]
[2024-11-22 09:35:37,298 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 09:35:37,298 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 09:35:37,440 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 09:35:37,879 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 09:35:37,880 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 09:35:37,880 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142091614]
[2024-11-22 09:35:37,880 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142091614] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 09:35:37,880 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 09:35:37,880 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-22 09:35:37,880 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563164035]
[2024-11-22 09:35:37,881 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 09:35:37,881 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-22 09:35:37,881 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 09:35:37,882 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-22 09:35:37,882 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-22 09:35:37,885 INFO  L87              Difference]: Start difference. First operand 319 states and 496 transitions. Second operand  has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 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 09:35:38,030 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 09:35:38,030 INFO  L93              Difference]: Finished difference Result 697 states and 1085 transitions.
[2024-11-22 09:35:38,030 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-22 09:35:38,031 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 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 09:35:38,032 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 09:35:38,039 INFO  L225             Difference]: With dead ends: 697
[2024-11-22 09:35:38,040 INFO  L226             Difference]: Without dead ends: 381
[2024-11-22 09:35:38,041 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 09:35:38,044 INFO  L432           NwaCegarLoop]: 111 mSDtfsCounter, 49 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-22 09:35:38,046 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 213 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-22 09:35:38,048 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 381 states.
[2024-11-22 09:35:38,120 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 371.
[2024-11-22 09:35:38,121 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 371 states, 255 states have (on average 1.384313725490196) internal successors, (353), 255 states have internal predecessors, (353), 110 states have call successors, (110), 5 states have call predecessors, (110), 5 states have return successors, (110), 110 states have call predecessors, (110), 110 states have call successors, (110)
[2024-11-22 09:35:38,126 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 573 transitions.
[2024-11-22 09:35:38,127 INFO  L78                 Accepts]: Start accepts. Automaton has 371 states and 573 transitions. Word has length 155
[2024-11-22 09:35:38,128 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 09:35:38,129 INFO  L471      AbstractCegarLoop]: Abstraction has 371 states and 573 transitions.
[2024-11-22 09:35:38,129 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 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 09:35:38,129 INFO  L276                IsEmpty]: Start isEmpty. Operand 371 states and 573 transitions.
[2024-11-22 09:35:38,131 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 157
[2024-11-22 09:35:38,131 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 09:35:38,132 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]
[2024-11-22 09:35:38,132 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-22 09:35:38,132 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 09:35:38,132 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 09:35:38,133 INFO  L85        PathProgramCache]: Analyzing trace with hash -1277742239, now seen corresponding path program 1 times
[2024-11-22 09:35:38,133 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 09:35:38,133 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241098806]
[2024-11-22 09:35:38,136 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 09:35:38,136 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 09:35:38,184 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 09:35:38,299 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 09:35:38,300 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 09:35:38,300 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241098806]
[2024-11-22 09:35:38,300 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241098806] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 09:35:38,300 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 09:35:38,300 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-22 09:35:38,300 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555761935]
[2024-11-22 09:35:38,300 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 09:35:38,301 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-22 09:35:38,301 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 09:35:38,301 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-22 09:35:38,302 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-22 09:35:38,302 INFO  L87              Difference]: Start difference. First operand 371 states and 573 transitions. Second operand  has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 09:35:38,380 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 09:35:38,381 INFO  L93              Difference]: Finished difference Result 719 states and 1122 transitions.
[2024-11-22 09:35:38,381 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-22 09:35:38,382 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 156
[2024-11-22 09:35:38,383 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 09:35:38,388 INFO  L225             Difference]: With dead ends: 719
[2024-11-22 09:35:38,389 INFO  L226             Difference]: Without dead ends: 403
[2024-11-22 09:35:38,391 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-22 09:35:38,391 INFO  L432           NwaCegarLoop]: 126 mSDtfsCounter, 11 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 239 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 09:35:38,392 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 239 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-22 09:35:38,393 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 403 states.
[2024-11-22 09:35:38,447 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 379.
[2024-11-22 09:35:38,448 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 379 states, 263 states have (on average 1.3878326996197718) internal successors, (365), 263 states have internal predecessors, (365), 110 states have call successors, (110), 5 states have call predecessors, (110), 5 states have return successors, (110), 110 states have call predecessors, (110), 110 states have call successors, (110)
[2024-11-22 09:35:38,452 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 585 transitions.
[2024-11-22 09:35:38,453 INFO  L78                 Accepts]: Start accepts. Automaton has 379 states and 585 transitions. Word has length 156
[2024-11-22 09:35:38,454 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 09:35:38,454 INFO  L471      AbstractCegarLoop]: Abstraction has 379 states and 585 transitions.
[2024-11-22 09:35:38,455 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 09:35:38,455 INFO  L276                IsEmpty]: Start isEmpty. Operand 379 states and 585 transitions.
[2024-11-22 09:35:38,457 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 158
[2024-11-22 09:35:38,457 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 09:35:38,458 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 09:35:38,458 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-22 09:35:38,458 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 09:35:38,459 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 09:35:38,459 INFO  L85        PathProgramCache]: Analyzing trace with hash -63484420, now seen corresponding path program 1 times
[2024-11-22 09:35:38,459 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 09:35:38,459 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804055994]
[2024-11-22 09:35:38,459 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 09:35:38,460 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 09:35:38,504 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 09:35:38,674 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 09:35:38,674 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 09:35:38,675 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804055994]
[2024-11-22 09:35:38,677 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804055994] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 09:35:38,677 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 09:35:38,677 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-22 09:35:38,677 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16834181]
[2024-11-22 09:35:38,678 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 09:35:38,678 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-22 09:35:38,678 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 09:35:38,679 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-22 09:35:38,679 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-22 09:35:38,679 INFO  L87              Difference]: Start difference. First operand 379 states and 585 transitions. Second operand  has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 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 09:35:38,763 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 09:35:38,763 INFO  L93              Difference]: Finished difference Result 713 states and 1107 transitions.
[2024-11-22 09:35:38,764 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-22 09:35:38,764 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 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 09:35:38,764 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 09:35:38,768 INFO  L225             Difference]: With dead ends: 713
[2024-11-22 09:35:38,768 INFO  L226             Difference]: Without dead ends: 389
[2024-11-22 09:35:38,770 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 09:35:38,771 INFO  L432           NwaCegarLoop]: 119 mSDtfsCounter, 47 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-22 09:35:38,771 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 230 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-22 09:35:38,773 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 389 states.
[2024-11-22 09:35:38,810 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 380.
[2024-11-22 09:35:38,811 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 380 states, 264 states have (on average 1.3863636363636365) internal successors, (366), 264 states have internal predecessors, (366), 110 states have call successors, (110), 5 states have call predecessors, (110), 5 states have return successors, (110), 110 states have call predecessors, (110), 110 states have call successors, (110)
[2024-11-22 09:35:38,814 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 586 transitions.
[2024-11-22 09:35:38,815 INFO  L78                 Accepts]: Start accepts. Automaton has 380 states and 586 transitions. Word has length 157
[2024-11-22 09:35:38,815 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 09:35:38,815 INFO  L471      AbstractCegarLoop]: Abstraction has 380 states and 586 transitions.
[2024-11-22 09:35:38,815 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 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 09:35:38,816 INFO  L276                IsEmpty]: Start isEmpty. Operand 380 states and 586 transitions.
[2024-11-22 09:35:38,817 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 158
[2024-11-22 09:35:38,817 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 09:35:38,817 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 09:35:38,817 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-22 09:35:38,817 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 09:35:38,818 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 09:35:38,818 INFO  L85        PathProgramCache]: Analyzing trace with hash -20546141, now seen corresponding path program 1 times
[2024-11-22 09:35:38,818 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 09:35:38,819 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402544777]
[2024-11-22 09:35:38,819 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 09:35:38,819 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 09:35:38,887 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 09:35:39,801 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 09:35:39,801 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 09:35:39,801 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402544777]
[2024-11-22 09:35:39,801 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402544777] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 09:35:39,802 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 09:35:39,802 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-22 09:35:39,802 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321323688]
[2024-11-22 09:35:39,804 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 09:35:39,804 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-22 09:35:39,804 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 09:35:39,805 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-22 09:35:39,805 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-22 09:35:39,805 INFO  L87              Difference]: Start difference. First operand 380 states and 586 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 09:35:40,178 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 09:35:40,178 INFO  L93              Difference]: Finished difference Result 723 states and 1119 transitions.
[2024-11-22 09:35:40,179 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-22 09:35:40,179 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 09:35:40,180 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 09:35:40,183 INFO  L225             Difference]: With dead ends: 723
[2024-11-22 09:35:40,183 INFO  L226             Difference]: Without dead ends: 387
[2024-11-22 09:35:40,184 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2024-11-22 09:35:40,185 INFO  L432           NwaCegarLoop]: 115 mSDtfsCounter, 52 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-22 09:35:40,185 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 362 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-22 09:35:40,186 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 387 states.
[2024-11-22 09:35:40,227 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 380.
[2024-11-22 09:35:40,228 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 380 states, 264 states have (on average 1.3825757575757576) internal successors, (365), 264 states have internal predecessors, (365), 110 states have call successors, (110), 5 states have call predecessors, (110), 5 states have return successors, (110), 110 states have call predecessors, (110), 110 states have call successors, (110)
[2024-11-22 09:35:40,231 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 585 transitions.
[2024-11-22 09:35:40,232 INFO  L78                 Accepts]: Start accepts. Automaton has 380 states and 585 transitions. Word has length 157
[2024-11-22 09:35:40,232 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 09:35:40,232 INFO  L471      AbstractCegarLoop]: Abstraction has 380 states and 585 transitions.
[2024-11-22 09:35:40,233 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 09:35:40,233 INFO  L276                IsEmpty]: Start isEmpty. Operand 380 states and 585 transitions.
[2024-11-22 09:35:40,234 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 158
[2024-11-22 09:35:40,234 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 09:35:40,234 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 09:35:40,235 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-22 09:35:40,235 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 09:35:40,235 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 09:35:40,235 INFO  L85        PathProgramCache]: Analyzing trace with hash 1668397601, now seen corresponding path program 1 times
[2024-11-22 09:35:40,236 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 09:35:40,236 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752176647]
[2024-11-22 09:35:40,236 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 09:35:40,236 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 09:35:40,396 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 09:35:47,089 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 09:35:47,089 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 09:35:47,090 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752176647]
[2024-11-22 09:35:47,090 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752176647] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 09:35:47,090 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 09:35:47,090 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15
[2024-11-22 09:35:47,091 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586590942]
[2024-11-22 09:35:47,091 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 09:35:47,091 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 15 states
[2024-11-22 09:35:47,091 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 09:35:47,092 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2024-11-22 09:35:47,093 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210
[2024-11-22 09:35:47,093 INFO  L87              Difference]: Start difference. First operand 380 states and 585 transitions. Second operand  has 15 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 15 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 09:35:53,063 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 09:35:53,063 INFO  L93              Difference]: Finished difference Result 742 states and 1104 transitions.
[2024-11-22 09:35:53,063 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. 
[2024-11-22 09:35:53,064 INFO  L78                 Accepts]: Start accepts. Automaton has  has 15 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 15 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 09:35:53,064 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 09:35:53,068 INFO  L225             Difference]: With dead ends: 742
[2024-11-22 09:35:53,068 INFO  L226             Difference]: Without dead ends: 740
[2024-11-22 09:35:53,069 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 523 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=593, Invalid=1759, Unknown=0, NotChecked=0, Total=2352
[2024-11-22 09:35:53,070 INFO  L432           NwaCegarLoop]: 102 mSDtfsCounter, 406 mSDsluCounter, 687 mSDsCounter, 0 mSdLazyCounter, 983 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 789 SdHoareTripleChecker+Invalid, 1078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time
[2024-11-22 09:35:53,070 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [406 Valid, 789 Invalid, 1078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 983 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time]
[2024-11-22 09:35:53,071 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 740 states.
[2024-11-22 09:35:53,124 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 588.
[2024-11-22 09:35:53,125 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 588 states, 426 states have (on average 1.3943661971830985) internal successors, (594), 426 states have internal predecessors, (594), 154 states have call successors, (154), 7 states have call predecessors, (154), 7 states have return successors, (154), 154 states have call predecessors, (154), 154 states have call successors, (154)
[2024-11-22 09:35:53,130 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 902 transitions.
[2024-11-22 09:35:53,132 INFO  L78                 Accepts]: Start accepts. Automaton has 588 states and 902 transitions. Word has length 157
[2024-11-22 09:35:53,133 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 09:35:53,133 INFO  L471      AbstractCegarLoop]: Abstraction has 588 states and 902 transitions.
[2024-11-22 09:35:53,133 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 15 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 15 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 09:35:53,134 INFO  L276                IsEmpty]: Start isEmpty. Operand 588 states and 902 transitions.
[2024-11-22 09:35:53,135 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 158
[2024-11-22 09:35:53,135 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 09:35:53,136 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 09:35:53,136 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-22 09:35:53,136 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 09:35:53,136 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 09:35:53,137 INFO  L85        PathProgramCache]: Analyzing trace with hash 1926563039, now seen corresponding path program 1 times
[2024-11-22 09:35:53,137 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 09:35:53,137 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574720703]
[2024-11-22 09:35:53,137 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 09:35:53,137 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 09:35:53,167 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 09:35:53,348 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 09:35:53,348 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 09:35:53,348 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574720703]
[2024-11-22 09:35:53,348 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574720703] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 09:35:53,348 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 09:35:53,348 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-22 09:35:53,349 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345971220]
[2024-11-22 09:35:53,349 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 09:35:53,349 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-22 09:35:53,349 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 09:35:53,350 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-22 09:35:53,350 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-22 09:35:53,351 INFO  L87              Difference]: Start difference. First operand 588 states and 902 transitions. Second operand  has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 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 09:35:53,507 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 09:35:53,507 INFO  L93              Difference]: Finished difference Result 1238 states and 1913 transitions.
[2024-11-22 09:35:53,507 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-22 09:35:53,508 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 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 09:35:53,508 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 09:35:53,512 INFO  L225             Difference]: With dead ends: 1238
[2024-11-22 09:35:53,513 INFO  L226             Difference]: Without dead ends: 706
[2024-11-22 09:35:53,514 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
[2024-11-22 09:35:53,515 INFO  L432           NwaCegarLoop]: 225 mSDtfsCounter, 142 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-22 09:35:53,515 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 502 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-22 09:35:53,516 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 706 states.
[2024-11-22 09:35:53,573 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 502.
[2024-11-22 09:35:53,574 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 502 states, 363 states have (on average 1.399449035812672) internal successors, (508), 363 states have internal predecessors, (508), 132 states have call successors, (132), 6 states have call predecessors, (132), 6 states have return successors, (132), 132 states have call predecessors, (132), 132 states have call successors, (132)
[2024-11-22 09:35:53,577 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 772 transitions.
[2024-11-22 09:35:53,578 INFO  L78                 Accepts]: Start accepts. Automaton has 502 states and 772 transitions. Word has length 157
[2024-11-22 09:35:53,578 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 09:35:53,578 INFO  L471      AbstractCegarLoop]: Abstraction has 502 states and 772 transitions.
[2024-11-22 09:35:53,579 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 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 09:35:53,579 INFO  L276                IsEmpty]: Start isEmpty. Operand 502 states and 772 transitions.
[2024-11-22 09:35:53,581 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 158
[2024-11-22 09:35:53,582 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 09:35:53,582 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 09:35:53,582 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-11-22 09:35:53,582 INFO  L396      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 09:35:53,583 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 09:35:53,583 INFO  L85        PathProgramCache]: Analyzing trace with hash 353835297, now seen corresponding path program 1 times
[2024-11-22 09:35:53,583 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 09:35:53,583 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506469013]
[2024-11-22 09:35:53,583 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 09:35:53,584 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 09:35:53,724 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 09:35:56,716 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 09:35:56,717 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 09:35:56,717 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506469013]
[2024-11-22 09:35:56,717 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506469013] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 09:35:56,717 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 09:35:56,717 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2024-11-22 09:35:56,717 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700923963]
[2024-11-22 09:35:56,717 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 09:35:56,718 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-11-22 09:35:56,718 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 09:35:56,718 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-11-22 09:35:56,718 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72
[2024-11-22 09:35:56,719 INFO  L87              Difference]: Start difference. First operand 502 states and 772 transitions. Second operand  has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 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 09:35:57,396 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 09:35:57,397 INFO  L93              Difference]: Finished difference Result 881 states and 1332 transitions.
[2024-11-22 09:35:57,397 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-11-22 09:35:57,397 INFO  L78                 Accepts]: Start accepts. Automaton has  has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 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 09:35:57,398 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 09:35:57,401 INFO  L225             Difference]: With dead ends: 881
[2024-11-22 09:35:57,401 INFO  L226             Difference]: Without dead ends: 601
[2024-11-22 09:35:57,402 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182
[2024-11-22 09:35:57,403 INFO  L432           NwaCegarLoop]: 121 mSDtfsCounter, 212 mSDsluCounter, 661 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 782 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-22 09:35:57,403 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 782 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-22 09:35:57,404 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 601 states.
[2024-11-22 09:35:57,445 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 522.
[2024-11-22 09:35:57,446 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 522 states, 375 states have (on average 1.3706666666666667) internal successors, (514), 376 states have internal predecessors, (514), 138 states have call successors, (138), 8 states have call predecessors, (138), 8 states have return successors, (138), 137 states have call predecessors, (138), 138 states have call successors, (138)
[2024-11-22 09:35:57,449 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 790 transitions.
[2024-11-22 09:35:57,449 INFO  L78                 Accepts]: Start accepts. Automaton has 522 states and 790 transitions. Word has length 157
[2024-11-22 09:35:57,450 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 09:35:57,450 INFO  L471      AbstractCegarLoop]: Abstraction has 522 states and 790 transitions.
[2024-11-22 09:35:57,450 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 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 09:35:57,451 INFO  L276                IsEmpty]: Start isEmpty. Operand 522 states and 790 transitions.
[2024-11-22 09:35:57,453 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 158
[2024-11-22 09:35:57,453 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 09:35:57,453 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 09:35:57,453 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-11-22 09:35:57,453 INFO  L396      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 09:35:57,454 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 09:35:57,454 INFO  L85        PathProgramCache]: Analyzing trace with hash 388533923, now seen corresponding path program 1 times
[2024-11-22 09:35:57,454 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 09:35:57,454 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258881587]
[2024-11-22 09:35:57,455 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 09:35:57,455 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 09:35:57,481 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 09:35:57,561 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 09:35:57,562 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 09:35:57,562 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258881587]
[2024-11-22 09:35:57,562 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258881587] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 09:35:57,562 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 09:35:57,562 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-22 09:35:57,562 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159138899]
[2024-11-22 09:35:57,562 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 09:35:57,563 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-22 09:35:57,563 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 09:35:57,563 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-22 09:35:57,563 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-22 09:35:57,563 INFO  L87              Difference]: Start difference. First operand 522 states and 790 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 09:35:57,724 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 09:35:57,724 INFO  L93              Difference]: Finished difference Result 605 states and 918 transitions.
[2024-11-22 09:35:57,725 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-22 09:35:57,725 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 09:35:57,725 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 09:35:57,729 INFO  L225             Difference]: With dead ends: 605
[2024-11-22 09:35:57,729 INFO  L226             Difference]: Without dead ends: 275
[2024-11-22 09:35:57,731 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 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 09:35:57,732 INFO  L432           NwaCegarLoop]: 120 mSDtfsCounter, 133 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-22 09:35:57,732 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 193 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-22 09:35:57,733 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 275 states.
[2024-11-22 09:35:57,759 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 269.
[2024-11-22 09:35:57,760 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 269 states, 191 states have (on average 1.2984293193717278) internal successors, (248), 192 states have internal predecessors, (248), 72 states have call successors, (72), 5 states have call predecessors, (72), 5 states have return successors, (72), 71 states have call predecessors, (72), 72 states have call successors, (72)
[2024-11-22 09:35:57,761 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 392 transitions.
[2024-11-22 09:35:57,762 INFO  L78                 Accepts]: Start accepts. Automaton has 269 states and 392 transitions. Word has length 157
[2024-11-22 09:35:57,762 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 09:35:57,762 INFO  L471      AbstractCegarLoop]: Abstraction has 269 states and 392 transitions.
[2024-11-22 09:35:57,762 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 09:35:57,763 INFO  L276                IsEmpty]: Start isEmpty. Operand 269 states and 392 transitions.
[2024-11-22 09:35:57,764 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 159
[2024-11-22 09:35:57,764 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 09:35:57,764 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, 1]
[2024-11-22 09:35:57,764 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-11-22 09:35:57,764 INFO  L396      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 09:35:57,764 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 09:35:57,764 INFO  L85        PathProgramCache]: Analyzing trace with hash -658551925, now seen corresponding path program 1 times
[2024-11-22 09:35:57,765 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 09:35:57,765 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10131573]
[2024-11-22 09:35:57,765 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 09:35:57,765 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 09:35:57,866 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat