/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.trace.refinement.strategy FOX -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-28.i


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


This is Ultimate 0.2.5-dev-17387ad-m
[2024-11-06 07:52:32,164 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-06 07:52:32,227 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-06 07:52:32,234 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-06 07:52:32,234 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-06 07:52:32,259 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-06 07:52:32,260 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-06 07:52:32,260 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-06 07:52:32,260 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-06 07:52:32,261 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-06 07:52:32,261 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-06 07:52:32,261 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-06 07:52:32,261 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-06 07:52:32,262 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-06 07:52:32,262 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-06 07:52:32,263 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-06 07:52:32,264 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-06 07:52:32,267 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-06 07:52:32,267 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-06 07:52:32,267 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-06 07:52:32,267 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-06 07:52:32,270 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-06 07:52:32,270 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-06 07:52:32,271 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-06 07:52:32,271 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-06 07:52:32,271 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-06 07:52:32,271 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-06 07:52:32,271 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-06 07:52:32,271 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-06 07:52:32,272 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-06 07:52:32,272 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-06 07:52:32,272 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-06 07:52:32,272 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-06 07:52:32,272 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-06 07:52:32,272 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 07:52:32,273 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-06 07:52:32,273 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-06 07:52:32,273 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-06 07:52:32,273 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-06 07:52:32,273 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-06 07:52:32,274 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-06 07:52:32,275 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-06 07:52:32,275 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-06 07:52:32,275 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-06 07:52:32,275 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FOX
[2024-11-06 07:52:32,438 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-06 07:52:32,455 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-06 07:52:32,456 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-06 07:52:32,458 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-06 07:52:32,458 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-06 07:52:32,459 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-28.i
[2024-11-06 07:52:33,859 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-06 07:52:33,996 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-06 07:52:33,997 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-28.i
[2024-11-06 07:52:34,002 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c43212d9/2ef4d4cc396a4e9ca2cbcfe7e069d4f6/FLAG452b0b4a7
[2024-11-06 07:52:34,422 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c43212d9/2ef4d4cc396a4e9ca2cbcfe7e069d4f6
[2024-11-06 07:52:34,424 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-06 07:52:34,425 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-06 07:52:34,426 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-06 07:52:34,426 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-06 07:52:34,433 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-06 07:52:34,434 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:52:34" (1/1) ...
[2024-11-06 07:52:34,439 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f0d960a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:52:34, skipping insertion in model container
[2024-11-06 07:52:34,439 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:52:34" (1/1) ...
[2024-11-06 07:52:34,473 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-06 07:52:34,621 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-28.i[916,929]
[2024-11-06 07:52:34,672 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-06 07:52:34,692 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-06 07:52:34,707 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-28.i[916,929]
[2024-11-06 07:52:34,721 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-06 07:52:34,736 INFO  L204         MainTranslator]: Completed translation
[2024-11-06 07:52:34,737 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:52:34 WrapperNode
[2024-11-06 07:52:34,737 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-06 07:52:34,738 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-06 07:52:34,738 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-06 07:52:34,738 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-06 07:52:34,743 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:52:34" (1/1) ...
[2024-11-06 07:52:34,752 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:52:34" (1/1) ...
[2024-11-06 07:52:34,770 INFO  L138                Inliner]: procedures = 27, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 107
[2024-11-06 07:52:34,771 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-06 07:52:34,771 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-06 07:52:34,771 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-06 07:52:34,771 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-06 07:52:34,779 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:52:34" (1/1) ...
[2024-11-06 07:52:34,779 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:52:34" (1/1) ...
[2024-11-06 07:52:34,785 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:52:34" (1/1) ...
[2024-11-06 07:52:34,794 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].
[2024-11-06 07:52:34,794 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:52:34" (1/1) ...
[2024-11-06 07:52:34,795 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:52:34" (1/1) ...
[2024-11-06 07:52:34,800 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:52:34" (1/1) ...
[2024-11-06 07:52:34,801 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:52:34" (1/1) ...
[2024-11-06 07:52:34,803 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:52:34" (1/1) ...
[2024-11-06 07:52:34,803 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:52:34" (1/1) ...
[2024-11-06 07:52:34,809 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-06 07:52:34,810 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-06 07:52:34,810 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-06 07:52:34,810 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-06 07:52:34,814 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:52:34" (1/1) ...
[2024-11-06 07:52:34,820 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-06 07:52:34,828 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 07:52:34,840 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)
[2024-11-06 07:52:34,842 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
[2024-11-06 07:52:34,863 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-06 07:52:34,863 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-06 07:52:34,863 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-06 07:52:34,863 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-06 07:52:34,863 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-06 07:52:34,863 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-06 07:52:34,927 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-06 07:52:34,928 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-06 07:52:35,182 INFO  L?                        ?]: Removed 12 outVars from TransFormulas that were not future-live.
[2024-11-06 07:52:35,182 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-06 07:52:35,196 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-06 07:52:35,196 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-06 07:52:35,198 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:52:35 BoogieIcfgContainer
[2024-11-06 07:52:35,199 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-06 07:52:35,200 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-06 07:52:35,201 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-06 07:52:35,203 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-06 07:52:35,203 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 07:52:34" (1/3) ...
[2024-11-06 07:52:35,204 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33200b9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:52:35, skipping insertion in model container
[2024-11-06 07:52:35,204 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:52:34" (2/3) ...
[2024-11-06 07:52:35,204 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33200b9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:52:35, skipping insertion in model container
[2024-11-06 07:52:35,204 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:52:35" (3/3) ...
[2024-11-06 07:52:35,205 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-28.i
[2024-11-06 07:52:35,219 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-06 07:52:35,219 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-06 07:52:35,268 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-06 07:52:35,273 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;@1aed5488, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-06 07:52:35,273 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-06 07:52:35,276 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 51 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 31 states have internal predecessors, (38), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18)
[2024-11-06 07:52:35,284 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 114
[2024-11-06 07:52:35,284 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 07:52:35,285 INFO  L215           NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 07:52:35,285 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 07:52:35,289 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 07:52:35,289 INFO  L85        PathProgramCache]: Analyzing trace with hash -1196679678, now seen corresponding path program 1 times
[2024-11-06 07:52:35,298 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 07:52:35,298 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [613014449]
[2024-11-06 07:52:35,299 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 07:52:35,299 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-06 07:52:35,299 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 07:52:35,301 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)
[2024-11-06 07:52:35,303 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-06 07:52:35,445 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 07:52:35,448 INFO  L255         TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-06 07:52:35,460 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 07:52:35,501 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked.
[2024-11-06 07:52:35,501 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-06 07:52:35,502 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 07:52:35,502 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [613014449]
[2024-11-06 07:52:35,503 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [613014449] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-06 07:52:35,503 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-06 07:52:35,503 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-06 07:52:35,506 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118225369]
[2024-11-06 07:52:35,508 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-06 07:52:35,513 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-06 07:52:35,513 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 07:52:35,535 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-06 07:52:35,535 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-06 07:52:35,537 INFO  L87              Difference]: Start difference. First operand  has 51 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 31 states have internal predecessors, (38), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand  has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18)
[2024-11-06 07:52:35,555 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 07:52:35,556 INFO  L93              Difference]: Finished difference Result 95 states and 160 transitions.
[2024-11-06 07:52:35,556 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-06 07:52:35,558 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 113
[2024-11-06 07:52:35,558 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 07:52:35,562 INFO  L225             Difference]: With dead ends: 95
[2024-11-06 07:52:35,563 INFO  L226             Difference]: Without dead ends: 47
[2024-11-06 07:52:35,565 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-06 07:52:35,567 INFO  L432           NwaCegarLoop]: 67 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, 67 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
[2024-11-06 07:52:35,568 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-06 07:52:35,579 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 47 states.
[2024-11-06 07:52:35,593 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47.
[2024-11-06 07:52:35,596 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 47 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 27 states have internal predecessors, (31), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18)
[2024-11-06 07:52:35,597 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 67 transitions.
[2024-11-06 07:52:35,601 INFO  L78                 Accepts]: Start accepts. Automaton has 47 states and 67 transitions. Word has length 113
[2024-11-06 07:52:35,602 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 07:52:35,602 INFO  L471      AbstractCegarLoop]: Abstraction has 47 states and 67 transitions.
[2024-11-06 07:52:35,602 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18)
[2024-11-06 07:52:35,602 INFO  L276                IsEmpty]: Start isEmpty. Operand 47 states and 67 transitions.
[2024-11-06 07:52:35,604 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 114
[2024-11-06 07:52:35,604 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 07:52:35,605 INFO  L215           NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 07:52:35,620 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-06 07:52:35,805 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
[2024-11-06 07:52:35,806 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 07:52:35,806 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 07:52:35,807 INFO  L85        PathProgramCache]: Analyzing trace with hash 95620930, now seen corresponding path program 1 times
[2024-11-06 07:52:35,807 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 07:52:35,807 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [946107410]
[2024-11-06 07:52:35,808 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 07:52:35,808 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-06 07:52:35,808 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 07:52:35,809 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)
[2024-11-06 07:52:35,811 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-06 07:52:35,941 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 07:52:35,946 INFO  L255         TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-06 07:52:35,957 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-06 07:52:36,164 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 293 proven. 33 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked.
[2024-11-06 07:52:36,164 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-06 07:52:36,402 INFO  L134       CoverageAnalysis]: Checked inductivity of 612 backedges. 18 proven. 33 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked.
[2024-11-06 07:52:36,402 INFO  L136   FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-06 07:52:36,402 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [946107410]
[2024-11-06 07:52:36,403 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [946107410] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-06 07:52:36,403 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-06 07:52:36,403 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10
[2024-11-06 07:52:36,403 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144084134]
[2024-11-06 07:52:36,403 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-06 07:52:36,407 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-06 07:52:36,407 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-06 07:52:36,409 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-06 07:52:36,409 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90
[2024-11-06 07:52:36,410 INFO  L87              Difference]: Start difference. First operand 47 states and 67 transitions. Second operand  has 10 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 3 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30)
[2024-11-06 07:52:36,648 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-06 07:52:36,649 INFO  L93              Difference]: Finished difference Result 97 states and 136 transitions.
[2024-11-06 07:52:36,650 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-11-06 07:52:36,651 INFO  L78                 Accepts]: Start accepts. Automaton has  has 10 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 3 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 113
[2024-11-06 07:52:36,652 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-06 07:52:36,653 INFO  L225             Difference]: With dead ends: 97
[2024-11-06 07:52:36,653 INFO  L226             Difference]: Without dead ends: 53
[2024-11-06 07:52:36,654 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156
[2024-11-06 07:52:36,655 INFO  L432           NwaCegarLoop]: 40 mSDtfsCounter, 45 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-06 07:52:36,655 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 102 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-06 07:52:36,656 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 53 states.
[2024-11-06 07:52:36,667 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 51.
[2024-11-06 07:52:36,667 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 51 states, 30 states have (on average 1.1) internal successors, (33), 30 states have internal predecessors, (33), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18)
[2024-11-06 07:52:36,670 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 69 transitions.
[2024-11-06 07:52:36,670 INFO  L78                 Accepts]: Start accepts. Automaton has 51 states and 69 transitions. Word has length 113
[2024-11-06 07:52:36,671 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-06 07:52:36,671 INFO  L471      AbstractCegarLoop]: Abstraction has 51 states and 69 transitions.
[2024-11-06 07:52:36,671 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 3 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30)
[2024-11-06 07:52:36,671 INFO  L276                IsEmpty]: Start isEmpty. Operand 51 states and 69 transitions.
[2024-11-06 07:52:36,673 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 114
[2024-11-06 07:52:36,673 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-06 07:52:36,673 INFO  L215           NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-06 07:52:36,695 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-06 07:52:36,874 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-06 07:52:36,875 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-06 07:52:36,876 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-06 07:52:36,876 INFO  L85        PathProgramCache]: Analyzing trace with hash -584437440, now seen corresponding path program 1 times
[2024-11-06 07:52:36,876 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-06 07:52:36,877 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [289908528]
[2024-11-06 07:52:36,877 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-06 07:52:36,877 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-06 07:52:36,877 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-06 07:52:36,878 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)
[2024-11-06 07:52:36,879 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-06 07:52:36,955 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-06 07:52:36,958 INFO  L255         TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 23 conjuncts are in the unsatisfiable core
[2024-11-06 07:52:36,963 INFO  L278         TraceCheckSpWp]: Computing forward predicates...