./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-33.i --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version 3061b6dc
Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-33.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 0fae542ffc508d581529777e32a74e7eca7b7550b33272b19a75a08e2a9e3ba4
--- Real Ultimate output ---
This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m
[2024-11-18 19:31:03,936 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-18 19:31:03,984 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-18 19:31:03,987 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-18 19:31:03,988 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-18 19:31:04,007 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-18 19:31:04,007 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-18 19:31:04,007 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-18 19:31:04,008 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-18 19:31:04,008 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-18 19:31:04,008 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-18 19:31:04,009 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-18 19:31:04,009 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-18 19:31:04,009 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-18 19:31:04,010 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-18 19:31:04,010 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-18 19:31:04,010 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-18 19:31:04,010 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-18 19:31:04,011 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-18 19:31:04,011 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-18 19:31:04,011 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-18 19:31:04,012 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-18 19:31:04,012 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-18 19:31:04,012 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-18 19:31:04,012 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-18 19:31:04,012 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-18 19:31:04,013 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-18 19:31:04,013 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-18 19:31:04,013 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-18 19:31:04,013 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-18 19:31:04,013 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-18 19:31:04,014 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-18 19:31:04,014 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-18 19:31:04,014 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-18 19:31:04,014 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-18 19:31:04,014 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-18 19:31:04,015 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-18 19:31:04,015 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-18 19:31:04,015 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-18 19:31:04,015 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-18 19:31:04,015 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-18 19:31:04,015 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-18 19:31:04,015 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 -> 0fae542ffc508d581529777e32a74e7eca7b7550b33272b19a75a08e2a9e3ba4
[2024-11-18 19:31:04,250 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-18 19:31:04,267 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-18 19:31:04,270 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-18 19:31:04,271 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-18 19:31:04,272 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-18 19:31:04,273 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-33.i
[2024-11-18 19:31:05,566 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-18 19:31:05,777 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-18 19:31:05,778 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-33.i
[2024-11-18 19:31:05,787 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b25e47590/fa173d2cc4e54025b4e450fe4763792e/FLAG3a79bc46d
[2024-11-18 19:31:06,134 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b25e47590/fa173d2cc4e54025b4e450fe4763792e
[2024-11-18 19:31:06,137 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-18 19:31:06,138 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-18 19:31:06,139 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-18 19:31:06,139 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-18 19:31:06,143 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-18 19:31:06,143 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:31:06" (1/1) ...
[2024-11-18 19:31:06,144 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4486770e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:31:06, skipping insertion in model container
[2024-11-18 19:31:06,144 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:31:06" (1/1) ...
[2024-11-18 19:31:06,174 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-18 19:31:06,304 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_fillercodesize_ps-cn-250_file-33.i[916,929]
[2024-11-18 19:31:06,425 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-18 19:31:06,438 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-18 19:31:06,450 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_fillercodesize_ps-cn-250_file-33.i[916,929]
[2024-11-18 19:31:06,505 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-18 19:31:06,531 INFO  L204         MainTranslator]: Completed translation
[2024-11-18 19:31:06,531 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:31:06 WrapperNode
[2024-11-18 19:31:06,531 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-18 19:31:06,532 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-18 19:31:06,533 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-18 19:31:06,533 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-18 19:31:06,539 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:31:06" (1/1) ...
[2024-11-18 19:31:06,560 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:31:06" (1/1) ...
[2024-11-18 19:31:06,619 INFO  L138                Inliner]: procedures = 26, calls = 99, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 598
[2024-11-18 19:31:06,620 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-18 19:31:06,621 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-18 19:31:06,621 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-18 19:31:06,621 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-18 19:31:06,630 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:31:06" (1/1) ...
[2024-11-18 19:31:06,630 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:31:06" (1/1) ...
[2024-11-18 19:31:06,643 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:31:06" (1/1) ...
[2024-11-18 19:31:06,676 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].
[2024-11-18 19:31:06,677 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:31:06" (1/1) ...
[2024-11-18 19:31:06,678 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:31:06" (1/1) ...
[2024-11-18 19:31:06,691 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:31:06" (1/1) ...
[2024-11-18 19:31:06,695 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:31:06" (1/1) ...
[2024-11-18 19:31:06,698 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:31:06" (1/1) ...
[2024-11-18 19:31:06,702 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:31:06" (1/1) ...
[2024-11-18 19:31:06,707 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-18 19:31:06,708 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-18 19:31:06,708 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-18 19:31:06,708 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-18 19:31:06,708 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:31:06" (1/1) ...
[2024-11-18 19:31:06,715 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-18 19:31:06,727 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-18 19:31:06,741 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)
[2024-11-18 19:31:06,743 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
[2024-11-18 19:31:06,779 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-18 19:31:06,779 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-18 19:31:06,779 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-18 19:31:06,779 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-18 19:31:06,779 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-18 19:31:06,780 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-18 19:31:06,895 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-18 19:31:06,897 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-18 19:31:07,586 INFO  L?                        ?]: Removed 20 outVars from TransFormulas that were not future-live.
[2024-11-18 19:31:07,587 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-18 19:31:07,610 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-18 19:31:07,610 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-18 19:31:07,611 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:31:07 BoogieIcfgContainer
[2024-11-18 19:31:07,611 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-18 19:31:07,613 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-18 19:31:07,613 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-18 19:31:07,615 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-18 19:31:07,616 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:31:06" (1/3) ...
[2024-11-18 19:31:07,616 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@406921b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:31:07, skipping insertion in model container
[2024-11-18 19:31:07,616 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:31:06" (2/3) ...
[2024-11-18 19:31:07,617 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@406921b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:31:07, skipping insertion in model container
[2024-11-18 19:31:07,617 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:31:07" (3/3) ...
[2024-11-18 19:31:07,618 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-33.i
[2024-11-18 19:31:07,630 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-18 19:31:07,630 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-18 19:31:07,692 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-18 19:31:07,697 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;@3cce4c9b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-18 19:31:07,699 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-18 19:31:07,704 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 257 states, 168 states have (on average 1.5357142857142858) internal successors, (258), 169 states have internal predecessors, (258), 86 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86)
[2024-11-18 19:31:07,744 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 534
[2024-11-18 19:31:07,745 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 19:31:07,746 INFO  L215           NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 19:31:07,747 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 19:31:07,751 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 19:31:07,751 INFO  L85        PathProgramCache]: Analyzing trace with hash -1349807650, now seen corresponding path program 1 times
[2024-11-18 19:31:07,759 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 19:31:07,760 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074259775]
[2024-11-18 19:31:07,761 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 19:31:07,761 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 19:31:07,923 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 19:31:08,252 INFO  L134       CoverageAnalysis]: Checked inductivity of 14620 backedges. 0 proven. 170 refuted. 0 times theorem prover too weak. 14450 trivial. 0 not checked.
[2024-11-18 19:31:08,253 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 19:31:08,253 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074259775]
[2024-11-18 19:31:08,254 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074259775] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-18 19:31:08,255 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1346244464]
[2024-11-18 19:31:08,255 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 19:31:08,255 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-18 19:31:08,255 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-18 19:31:08,257 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)
[2024-11-18 19:31:08,259 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-18 19:31:08,521 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 19:31:08,526 INFO  L255         TraceCheckSpWp]: Trace formula consists of 1167 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-18 19:31:08,546 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-18 19:31:08,606 INFO  L134       CoverageAnalysis]: Checked inductivity of 14620 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 14450 trivial. 0 not checked.
[2024-11-18 19:31:08,606 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-18 19:31:08,607 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1346244464] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 19:31:08,607 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-18 19:31:08,607 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-18 19:31:08,610 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174026757]
[2024-11-18 19:31:08,610 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 19:31:08,616 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-18 19:31:08,616 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 19:31:08,639 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-18 19:31:08,640 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-18 19:31:08,643 INFO  L87              Difference]: Start difference. First operand  has 257 states, 168 states have (on average 1.5357142857142858) internal successors, (258), 169 states have internal predecessors, (258), 86 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) Second operand  has 2 states, 2 states have (on average 54.0) internal successors, (108), 2 states have internal predecessors, (108), 2 states have call successors, (86), 2 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 2 states have call successors, (86)
[2024-11-18 19:31:08,699 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 19:31:08,700 INFO  L93              Difference]: Finished difference Result 507 states and 940 transitions.
[2024-11-18 19:31:08,701 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-18 19:31:08,703 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 54.0) internal successors, (108), 2 states have internal predecessors, (108), 2 states have call successors, (86), 2 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 2 states have call successors, (86) Word has length 533
[2024-11-18 19:31:08,704 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 19:31:08,713 INFO  L225             Difference]: With dead ends: 507
[2024-11-18 19:31:08,714 INFO  L226             Difference]: Without dead ends: 253
[2024-11-18 19:31:08,719 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 534 GetRequests, 534 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-18 19:31:08,723 INFO  L432           NwaCegarLoop]: 421 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, 421 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
[2024-11-18 19:31:08,725 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-18 19:31:08,740 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 253 states.
[2024-11-18 19:31:08,791 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 253.
[2024-11-18 19:31:08,793 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 253 states, 165 states have (on average 1.509090909090909) internal successors, (249), 165 states have internal predecessors, (249), 86 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86)
[2024-11-18 19:31:08,795 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 421 transitions.
[2024-11-18 19:31:08,800 INFO  L78                 Accepts]: Start accepts. Automaton has 253 states and 421 transitions. Word has length 533
[2024-11-18 19:31:08,801 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 19:31:08,801 INFO  L471      AbstractCegarLoop]: Abstraction has 253 states and 421 transitions.
[2024-11-18 19:31:08,801 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 54.0) internal successors, (108), 2 states have internal predecessors, (108), 2 states have call successors, (86), 2 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 2 states have call successors, (86)
[2024-11-18 19:31:08,802 INFO  L276                IsEmpty]: Start isEmpty. Operand 253 states and 421 transitions.
[2024-11-18 19:31:08,818 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 534
[2024-11-18 19:31:08,818 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 19:31:08,819 INFO  L215           NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 19:31:08,835 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-18 19:31:09,020 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
[2024-11-18 19:31:09,021 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 19:31:09,022 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 19:31:09,023 INFO  L85        PathProgramCache]: Analyzing trace with hash -350335398, now seen corresponding path program 1 times
[2024-11-18 19:31:09,023 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 19:31:09,023 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500272472]
[2024-11-18 19:31:09,024 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 19:31:09,025 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 19:31:09,188 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 19:31:10,081 INFO  L134       CoverageAnalysis]: Checked inductivity of 14620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14620 trivial. 0 not checked.
[2024-11-18 19:31:10,083 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 19:31:10,084 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500272472]
[2024-11-18 19:31:10,084 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500272472] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 19:31:10,084 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 19:31:10,084 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-18 19:31:10,085 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960945946]
[2024-11-18 19:31:10,085 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 19:31:10,086 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-18 19:31:10,086 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 19:31:10,087 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-18 19:31:10,087 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-18 19:31:10,088 INFO  L87              Difference]: Start difference. First operand 253 states and 421 transitions. Second operand  has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86)
[2024-11-18 19:31:10,235 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 19:31:10,236 INFO  L93              Difference]: Finished difference Result 753 states and 1257 transitions.
[2024-11-18 19:31:10,237 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-18 19:31:10,238 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) Word has length 533
[2024-11-18 19:31:10,239 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 19:31:10,246 INFO  L225             Difference]: With dead ends: 753
[2024-11-18 19:31:10,247 INFO  L226             Difference]: Without dead ends: 503
[2024-11-18 19:31:10,248 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-18 19:31:10,249 INFO  L432           NwaCegarLoop]: 414 mSDtfsCounter, 415 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 819 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-18 19:31:10,250 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [415 Valid, 819 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-18 19:31:10,251 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 503 states.
[2024-11-18 19:31:10,305 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 501.
[2024-11-18 19:31:10,307 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 501 states, 326 states have (on average 1.5122699386503067) internal successors, (493), 326 states have internal predecessors, (493), 172 states have call successors, (172), 2 states have call predecessors, (172), 2 states have return successors, (172), 172 states have call predecessors, (172), 172 states have call successors, (172)
[2024-11-18 19:31:10,312 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 837 transitions.
[2024-11-18 19:31:10,312 INFO  L78                 Accepts]: Start accepts. Automaton has 501 states and 837 transitions. Word has length 533
[2024-11-18 19:31:10,314 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 19:31:10,314 INFO  L471      AbstractCegarLoop]: Abstraction has 501 states and 837 transitions.
[2024-11-18 19:31:10,314 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86)
[2024-11-18 19:31:10,314 INFO  L276                IsEmpty]: Start isEmpty. Operand 501 states and 837 transitions.
[2024-11-18 19:31:10,324 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 535
[2024-11-18 19:31:10,325 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 19:31:10,325 INFO  L215           NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 19:31:10,325 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-18 19:31:10,326 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 19:31:10,326 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 19:31:10,326 INFO  L85        PathProgramCache]: Analyzing trace with hash -1242166131, now seen corresponding path program 1 times
[2024-11-18 19:31:10,327 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 19:31:10,327 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749718732]
[2024-11-18 19:31:10,327 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 19:31:10,327 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 19:31:10,495 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 19:31:11,101 INFO  L134       CoverageAnalysis]: Checked inductivity of 14620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14620 trivial. 0 not checked.
[2024-11-18 19:31:11,102 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 19:31:11,102 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749718732]
[2024-11-18 19:31:11,102 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749718732] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 19:31:11,102 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 19:31:11,102 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-18 19:31:11,102 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65474154]
[2024-11-18 19:31:11,103 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 19:31:11,103 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-18 19:31:11,103 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 19:31:11,104 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-18 19:31:11,104 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-18 19:31:11,104 INFO  L87              Difference]: Start difference. First operand 501 states and 837 transitions. Second operand  has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86)
[2024-11-18 19:31:11,545 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 19:31:11,545 INFO  L93              Difference]: Finished difference Result 1351 states and 2264 transitions.
[2024-11-18 19:31:11,545 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-18 19:31:11,546 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) Word has length 534
[2024-11-18 19:31:11,547 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 19:31:11,552 INFO  L225             Difference]: With dead ends: 1351
[2024-11-18 19:31:11,552 INFO  L226             Difference]: Without dead ends: 853
[2024-11-18 19:31:11,554 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
[2024-11-18 19:31:11,554 INFO  L432           NwaCegarLoop]: 400 mSDtfsCounter, 390 mSDsluCounter, 797 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 260 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 1197 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 260 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-18 19:31:11,555 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 1197 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [260 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-18 19:31:11,556 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 853 states.
[2024-11-18 19:31:11,646 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 827.
[2024-11-18 19:31:11,647 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 827 states, 565 states have (on average 1.5486725663716814) internal successors, (875), 565 states have internal predecessors, (875), 258 states have call successors, (258), 3 states have call predecessors, (258), 3 states have return successors, (258), 258 states have call predecessors, (258), 258 states have call successors, (258)
[2024-11-18 19:31:11,652 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 827 states and 1391 transitions.
[2024-11-18 19:31:11,653 INFO  L78                 Accepts]: Start accepts. Automaton has 827 states and 1391 transitions. Word has length 534
[2024-11-18 19:31:11,654 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 19:31:11,654 INFO  L471      AbstractCegarLoop]: Abstraction has 827 states and 1391 transitions.
[2024-11-18 19:31:11,655 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86)
[2024-11-18 19:31:11,655 INFO  L276                IsEmpty]: Start isEmpty. Operand 827 states and 1391 transitions.
[2024-11-18 19:31:11,657 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 536
[2024-11-18 19:31:11,657 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 19:31:11,658 INFO  L215           NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 19:31:11,658 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-18 19:31:11,658 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 19:31:11,658 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 19:31:11,659 INFO  L85        PathProgramCache]: Analyzing trace with hash -928965691, now seen corresponding path program 1 times
[2024-11-18 19:31:11,659 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 19:31:11,659 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536836007]
[2024-11-18 19:31:11,659 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 19:31:11,659 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 19:31:11,710 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 19:31:12,046 INFO  L134       CoverageAnalysis]: Checked inductivity of 14620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14620 trivial. 0 not checked.
[2024-11-18 19:31:12,046 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 19:31:12,046 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536836007]
[2024-11-18 19:31:12,047 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536836007] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 19:31:12,047 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 19:31:12,047 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-18 19:31:12,047 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606436051]
[2024-11-18 19:31:12,047 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 19:31:12,048 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-18 19:31:12,048 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 19:31:12,048 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-18 19:31:12,048 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-18 19:31:12,049 INFO  L87              Difference]: Start difference. First operand 827 states and 1391 transitions. Second operand  has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86)
[2024-11-18 19:31:12,402 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 19:31:12,403 INFO  L93              Difference]: Finished difference Result 1369 states and 2286 transitions.
[2024-11-18 19:31:12,403 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-18 19:31:12,404 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) Word has length 535
[2024-11-18 19:31:12,404 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 19:31:12,409 INFO  L225             Difference]: With dead ends: 1369
[2024-11-18 19:31:12,409 INFO  L226             Difference]: Without dead ends: 845
[2024-11-18 19:31:12,411 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
[2024-11-18 19:31:12,412 INFO  L432           NwaCegarLoop]: 403 mSDtfsCounter, 380 mSDsluCounter, 802 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 260 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 1205 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 260 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-18 19:31:12,412 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [380 Valid, 1205 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [260 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-18 19:31:12,413 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 845 states.
[2024-11-18 19:31:12,468 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 829.
[2024-11-18 19:31:12,470 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 829 states, 567 states have (on average 1.5432098765432098) internal successors, (875), 567 states have internal predecessors, (875), 258 states have call successors, (258), 3 states have call predecessors, (258), 3 states have return successors, (258), 258 states have call predecessors, (258), 258 states have call successors, (258)
[2024-11-18 19:31:12,473 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1391 transitions.
[2024-11-18 19:31:12,474 INFO  L78                 Accepts]: Start accepts. Automaton has 829 states and 1391 transitions. Word has length 535
[2024-11-18 19:31:12,475 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 19:31:12,475 INFO  L471      AbstractCegarLoop]: Abstraction has 829 states and 1391 transitions.
[2024-11-18 19:31:12,476 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (86), 1 states have call predecessors, (86), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86)
[2024-11-18 19:31:12,476 INFO  L276                IsEmpty]: Start isEmpty. Operand 829 states and 1391 transitions.
[2024-11-18 19:31:12,478 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 537
[2024-11-18 19:31:12,478 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 19:31:12,478 INFO  L215           NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 19:31:12,479 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-18 19:31:12,479 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 19:31:12,479 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 19:31:12,479 INFO  L85        PathProgramCache]: Analyzing trace with hash -1326362518, now seen corresponding path program 1 times
[2024-11-18 19:31:12,480 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 19:31:12,480 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446292320]
[2024-11-18 19:31:12,480 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 19:31:12,480 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 19:31:12,709 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 19:31:13,371 INFO  L134       CoverageAnalysis]: Checked inductivity of 14620 backedges. 102 proven. 153 refuted. 0 times theorem prover too weak. 14365 trivial. 0 not checked.
[2024-11-18 19:31:13,372 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 19:31:13,372 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446292320]
[2024-11-18 19:31:13,372 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446292320] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-18 19:31:13,372 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1531248316]
[2024-11-18 19:31:13,372 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 19:31:13,372 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-18 19:31:13,373 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-18 19:31:13,376 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-18 19:31:13,377 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-18 19:31:13,620 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 19:31:13,627 INFO  L255         TraceCheckSpWp]: Trace formula consists of 1171 conjuncts, 11 conjuncts are in the unsatisfiable core
[2024-11-18 19:31:13,639 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-18 19:31:14,357 INFO  L134       CoverageAnalysis]: Checked inductivity of 14620 backedges. 8652 proven. 210 refuted. 0 times theorem prover too weak. 5758 trivial. 0 not checked.
[2024-11-18 19:31:14,357 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-18 19:31:36,027 INFO  L134       CoverageAnalysis]: Checked inductivity of 14620 backedges. 294 proven. 213 refuted. 0 times theorem prover too weak. 14113 trivial. 0 not checked.
[2024-11-18 19:31:36,027 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1531248316] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-18 19:31:36,028 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-18 19:31:36,028 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 19
[2024-11-18 19:31:36,028 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451594882]
[2024-11-18 19:31:36,028 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-18 19:31:36,029 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 19 states
[2024-11-18 19:31:36,029 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 19:31:36,031 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2024-11-18 19:31:36,031 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342
[2024-11-18 19:31:36,032 INFO  L87              Difference]: Start difference. First operand 829 states and 1391 transitions. Second operand  has 19 states, 19 states have (on average 13.368421052631579) internal successors, (254), 19 states have internal predecessors, (254), 6 states have call successors, (213), 3 states have call predecessors, (213), 7 states have return successors, (214), 6 states have call predecessors, (214), 6 states have call successors, (214)
[2024-11-18 19:31:42,580 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 19:31:42,580 INFO  L93              Difference]: Finished difference Result 3738 states and 6230 transitions.
[2024-11-18 19:31:42,581 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. 
[2024-11-18 19:31:42,581 INFO  L78                 Accepts]: Start accepts. Automaton has  has 19 states, 19 states have (on average 13.368421052631579) internal successors, (254), 19 states have internal predecessors, (254), 6 states have call successors, (213), 3 states have call predecessors, (213), 7 states have return successors, (214), 6 states have call predecessors, (214), 6 states have call successors, (214) Word has length 536
[2024-11-18 19:31:42,582 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 19:31:42,597 INFO  L225             Difference]: With dead ends: 3738
[2024-11-18 19:31:42,597 INFO  L226             Difference]: Without dead ends: 3076
[2024-11-18 19:31:42,602 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 1125 GetRequests, 1069 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 812 ImplicationChecksByTransitivity, 22.0s TimeCoverageRelationStatistics Valid=842, Invalid=2350, Unknown=0, NotChecked=0, Total=3192
[2024-11-18 19:31:42,603 INFO  L432           NwaCegarLoop]: 316 mSDtfsCounter, 4758 mSDsluCounter, 2391 mSDsCounter, 0 mSdLazyCounter, 2640 mSolverCounterSat, 1822 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4803 SdHoareTripleChecker+Valid, 2707 SdHoareTripleChecker+Invalid, 4462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1822 IncrementalHoareTripleChecker+Valid, 2640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time
[2024-11-18 19:31:42,603 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [4803 Valid, 2707 Invalid, 4462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1822 Valid, 2640 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time]
[2024-11-18 19:31:42,606 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3076 states.
[2024-11-18 19:31:42,783 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3076 to 3020.
[2024-11-18 19:31:42,788 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3020 states, 2378 states have (on average 1.586627417998318) internal successors, (3773), 2384 states have internal predecessors, (3773), 614 states have call successors, (614), 27 states have call predecessors, (614), 27 states have return successors, (614), 608 states have call predecessors, (614), 614 states have call successors, (614)
[2024-11-18 19:31:42,797 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3020 states to 3020 states and 5001 transitions.
[2024-11-18 19:31:42,799 INFO  L78                 Accepts]: Start accepts. Automaton has 3020 states and 5001 transitions. Word has length 536
[2024-11-18 19:31:42,800 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 19:31:42,800 INFO  L471      AbstractCegarLoop]: Abstraction has 3020 states and 5001 transitions.
[2024-11-18 19:31:42,801 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 19 states, 19 states have (on average 13.368421052631579) internal successors, (254), 19 states have internal predecessors, (254), 6 states have call successors, (213), 3 states have call predecessors, (213), 7 states have return successors, (214), 6 states have call predecessors, (214), 6 states have call successors, (214)
[2024-11-18 19:31:42,801 INFO  L276                IsEmpty]: Start isEmpty. Operand 3020 states and 5001 transitions.
[2024-11-18 19:31:42,806 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 537
[2024-11-18 19:31:42,806 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 19:31:42,806 INFO  L215           NwaCegarLoop]: trace histogram [86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 19:31:42,824 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-18 19:31:43,011 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-18 19:31:43,012 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 19:31:43,012 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 19:31:43,012 INFO  L85        PathProgramCache]: Analyzing trace with hash -432493782, now seen corresponding path program 1 times
[2024-11-18 19:31:43,012 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 19:31:43,013 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813790021]
[2024-11-18 19:31:43,013 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 19:31:43,013 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 19:31:43,278 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 19:31:43,617 INFO  L134       CoverageAnalysis]: Checked inductivity of 14620 backedges. 120 proven. 135 refuted. 0 times theorem prover too weak. 14365 trivial. 0 not checked.
[2024-11-18 19:31:43,618 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 19:31:43,618 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813790021]
[2024-11-18 19:31:43,618 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813790021] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-18 19:31:43,618 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1981554952]
[2024-11-18 19:31:43,618 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 19:31:43,618 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-18 19:31:43,618 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-18 19:31:43,620 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-18 19:31:43,621 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-18 19:31:43,831 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 19:31:43,836 INFO  L255         TraceCheckSpWp]: Trace formula consists of 1168 conjuncts, 35 conjuncts are in the unsatisfiable core
[2024-11-18 19:31:43,846 INFO  L278         TraceCheckSpWp]: Computing forward predicates...